The battle of the e-textbook : libraries ’ role in facilitating student acceptance and use of e-textbooks

The objective of this study was to investigate students’ acceptance and use of e-textbooks to enable libraries to make more informed decisions about their e-book collections. The data were collected in a classroom situation, surveying students who had been exposed to e-textbooks. A self-completion questionnaire was used and 254 usable questionnaires were received. The results showed that most students would prefer to have both a printed textbook and an e-textbook. Although almost half of the respondents indicated that they would prefer it if the library were to buy more e-textbooks, the others did not see a need for this option or they did not care. However, only 44% of respondents indicated that they knew how to access the electronic collection in the library. It was, furthermore, a matter of concern that 82% of the respondents never, or rarely, made use of e-textbooks from the library. The results suggest that e-textbooks are not perceived as more useful than print textbooks. It is up to universities, and more specifically libraries as distributors of information, to take the lead in developing policies, processes, and strategies to deal with e-textbooks, and to manage this electronic challenge successfully.


Introduction
Something we once loved, and love now, in the shape of a book.Maybe e-books are going to take over, one day, but not until those whiz kids in Silicon Valley invent a way to bend the corners, fold the spine, yellow the pages, add a coffee ring or two and allow the plastic tablet to fall open at a favourite page.Russel T. Davies in The Hitchhikers Guide to the Galaxy (Adams, 2009).
The advent of the internet brought about a new technological era, forcing libraries to adapt their services to a completely new set of user expectations shaped by emerging technologies.The growth of e-books, and the introduction of such projects as Google Books, forever changed the landscape for libraries.According to the Online Community Library Centre's (OCLC) Perceptions of Libraries report (2010: 15), the battle of e-resources and services has intensified over the last five years.The report found that the library brand is still considered to be "books"; a stronger perception in 2010 even than in 2005.As new consumer devices, technologies and online services become available, consumers' perception of libraries as "books" has solidified, thus making it increasingly difficult to position libraries as relevant in the online, internet era.The same has proven to be true for academic libraries in particular.
Many academic publishing companies have entered the e-book market (Wu & Chen 2011: 294); however e-books are yet to achieve extensive distribution across the globe (Shin 2011: 262).The youth of today, having grown up in an environment where they encountered and were continuously exposed to new technologies (Weisberg 2011: 189), were initially expected to use e-books in a way that would render print books obsolete (Gregory 2008: 267).However, unlike other new technologies which have taken over from older methods, e-books have, to some extent, failed to "take off" as they were predicted to do in a technologically advanced society (Soules 2008in De Oliveira 2012).This slow acceptance of the e-book, and more specifically (for the sake of this paper) academic e-books in the form of e-textbooks, could be due to the limited number of available academic e-books , a lack of awareness of e-books, as well as a number of other factors (Muir & Hawes 2013: 1).
In the academic context, e-books have started to make an appearance in some university libraries, resulting in libraries adjusting and expanding their budgets in order to include e-books (Wu & Chen 2011: 294).Although e-books have now been around for more than ten years (Cassidy, Martinez & Shen 2012: 327), they are yet to take their rightful place in the academic context as electronic journals have done (Muir & Hawes 2013: 1;Kahn & Underwood 2013: 10).However, despite this, some universities have started decreasing the size of print collections in order to make way for electronic collections (Wu & Chen, 2011: 294) and academic e-books, and specifically e-textbooks, are thus becoming an essential component in university library collections (Strother et al. 2009(Strother et al. : 1361)).The OCLC posed the question: "Will the 'books brand perception' shift as libraries increase their investments in and advertising of electronic information and electronic books?" (OCLC 2010: 20).
Students, especially those in more developed countries, have embraced technology; as a result, academic e-books have become increasingly popular among these students, due to the perceived convenience that e-books offer (Elias, Phillips & Luechtefeld 2012: 262).But in many developing countries such as South Africa this is not necessarily the case.In order to adopt the use of e-textbooks successfully, universities, as well as other academic institutions, need to provide students with the necessary resources and instructors to use them (Sun, Flores & Tanguma 2012: 63).The resources which are necessary to enable students to use e-textbooks include e-readers or e-book reading devices.Examples include the desktop computer, iPad, Amazon Kindle, the Sony e-Reader Touch, Personal Digital Assistants (PDA), as well as mobile telephones (Weisberg 2011: 191;Wu & Chen 2011: 295).However, more importantly, students need to perceive e-textbooks as useful; and herein lies the problem.There are mixed feelings among students on the use of ebooks in an academic setting, as students still prefer to use traditional printed books (Gregory 2008: 266).
Although publishers, academics and libraries are not sure about the future and the possible effect of e-books, they are increasingly becoming aware that e-books warrant more attention and investigation (Vassiliou & Rowley 2008).Some research has been done about e-books in an academic setting (Gregory 2008;Folb, Wessels & Czechowski 2011;Nicholas & Lewis 2008;Shin 2011;Sun, Flores & Tanguma 2012) but several unanswered questions still remain, especially in the South African context.For example, why is the uptake of e-books, and specifically e-textbooks, so slow?What is the role of university libraries in the e-book debate?Why do computer-savvy Generation Y students still prefer the 'old' technology of printed textbooks?This paper attempts to shed light on some of these questions and, by doing so, contribute to the local research available on this topic.

E-books in an academic setting
Although electronic journals have established themselves as much-needed resources, the same cannot be said for ebooks.Gregory (2008: 269) found that students' main reasons for using e-books were "research, followed by homework assignments or reference".Students indicated that they "read small portions of text on screen combined with printing portions of digital text needed and do not spend long periods of time reading from a computer screen, opting instead to read from printouts" (Gregory 2008: 270).Appleton in Gregory (2008: 268) found that "students used e-books in a manner similar to e-journals by randomly accessing segments of text rather than … [reading] sequentially".Thus, students use ebooks in the same way as they do e-journals, indicating a "use not read" approach.Furthermore, there is still confusion over the definition of an e-book (Tedd 2005).The Jisc report Promoting the uptake of E-Books in Higher and Further Education (2003) highlights that a source of confusion, and therefore a barrier to the uptake of e-books within the academic context, is the lack of an adequate definition.Armstrong et al. (2002) defines an e-book as any piece of electronic text regardless of size or composition (a digital object), but excluding journal publications, made available electronically (or optically) for any device (handheld or desk-bound) that includes a screen.Vassiliou and Rowley (2008) propose a two-part definition: An e-book is a digital object with textual and/or other content, which arises as a result of integrating the familiar concept of a book with features that can be provided in an electronic environment … ebooks, typically have in-use features such search and cross reference functions, hypertext links, bookmarks, annotations, highlights, multimedia.
Various kinds of academic e-books are available such as textbooks, reference materials such as dictionaries, scholarly monographs; directories, technical reports, working papers, conference papers and proceedings, official publications, trade literature and theses (Armstrong and Lonsdale 2003).However, in many research studies conducted in an academic setting, it is evident on closer inspection that, although authors refer to 'e-books' their investigations have mainly been around 'e-books in a classroom setting'in other words, e-textbooks.For the remainder of this paper, therefore, the term 'academic e-book' refers to all academic e-books used by students (listed by Armstrong and Lonsdale 2003), including textbooks, while the term 'e-textbook' refers specifically to prescribed material for a specific course or 'ebooks in a classroom setting'.Although this study also investigated perceptions about academic e-books in general, the research focuses specifically on e-textbooks.

The e-textbook dilemma
Despite the fact that millennials or 'digital natives' (those born after 1981) have grown up in a technologically advanced environment, and are more likely to be comfortable working on keyboards and reading from computer screens, they still tend to prefer traditional print books rather than e-books when it comes to reading a book (Gregory 2008: 267;Strother et al. 2009Strother et al. : 1362;;Nicholas & Lewis, 2008: 23).However, this preference for print books may not necessarily reflect their actual experience with an e-book, as the e-book is still a fairly new concept to many people (Sun, Flores & Tanguma 2012: 65).Nelson (2008) reported that, in general, students and academics prefer e-books to printed books for research purposes but not for the classroom, thus suggesting that e-books in an academic setting (textbooks) may have limited scope and application.
There is a wealth of international literature that supports the fact that the majority of students today still prefer to use print books rather than e-books in an academic setting (Wu & Chen 2011;Sun, Flores & Tanguma 2012;Muir & Hawes 2013;Cassidy, Martinez & Shen 2012;Gregory 2008;Elias, Phillips & Luechtefeld 2012;Abdullah & Gibb 2008).Some students have clearly indicated that they prefer using print books, because they perceive e-books as hard to navigate, despite the 'anywhere-and-anytime' access that e-books supposedly offer (Gregory 2008: 267).Students are also reluctant to use academic e-books, because some of the emotional elements are missing from the e-book experience, which are more immediately apparent in the use of print books (Shin 2011: 261).Weisberg (2011) reports that over time students' attitudes and behaviours will become more receptive to using e-books.The preference for print textbooks may thus be a reflection of their familiarity, rather than their actual experiences, with either print books or e-books (Sun, Flores & Tanguma 2012: 65).Research has shown that students have found searching for academic e-books much easier and faster than searching for print books and that they also have not experienced any major difficulties while using e-books (Wu & Chen 2011: 301).
However, there are a number of factors that could influence the preference for either print or electronic books.These factors are not limited to, but include: the fact that some students may be distance students; the field of study that students are enrolled in; accessibility of print versions; the accessibility of e-textbooks in class; and the cost of etextbooks compared with print books (Abdullah & Gibb 2008;Gregory 2008: 268;Cassidy, Martinez & Shen 2012: 328;Wu & Chen 2011: 299).Textbooks amount to a significant portion of university costs, and with the cost of print books rising with each new edition that is published, price becomes an important issue (Elias, Phillips & Luechtefeld 2012: 262).In a study conducted in the United States of America, it was found that seven out of ten students have stopped buying textbooks because of their cost.Eighty-one percent of all students have also reported being negatively affected by new editions of textbooks that limited the resale value of their used textbooks or prevented them from buying a used textbook at a reduced price (Redden 2011: 23).
The increase in print book prices has resulted in e-textbooks gaining increasing popularity among students (Elias, Phillips & Luechtefeld 2012: 262).E-textbooks are sometimes less expensive than print books; and encouraging the use of e-textbooks could provide a certain level of relief to students from increasing academic expenses (Sun, Flores & Tanguma 2012: 65).According to Elias, Phillips & Luechtefeld 2012(2012: 262), "many e-textbooks can be obtained by buying a lifetime download or by renting the e-textbook for a period of 180 to 360 days".However, it is also important to take note of the impact of e-textbooks on the used textbook market, as e-textbooks cannot be resold after use.On the other hand, e-textbooks are not always cheaper than print books.Jantz (2002) argues that most academic e-books have the same price as print books; and this could further prevent students from buying e-textbooks.
Despite the increase in the cost of print books, cost is not necessarily the only deciding factor for students who have started using e-textbooks.With the use of e-textbooks comes the need to have the required electronic device on which to be able to view such an e-textbook (Sun, Flores & Tanguma 2012: 68;Elias, Phillips & Luechtefeld 2012: 265).The need for such devices is often a deciding factor in the matter (Sun, Flores & Tanguma 2012: 68;Elias, Phillips & Luechtefeld 2012: 265).Furthermore, research has indicated that in-class accessibility to e-textbooks, rather than their cost, determines whether a student would be interested in purchasing a hard copy, or not (Sun, Flores & Tanguma 2012: 68).

E-textbooks as a technological innovation
It might be useful to look at diffusion theory and the Technology Acceptance Model (TAM) to try to understand the possible underlying reasons for the slow uptake of e-textbooks.The diffusion theory proposes that the relative advantage, compatibility, complexity, trialability and observability of a new technology (such as e-textbooks), might affect the speed of its diffusion (Dillon & Morris 1996).Although each characteristic on its own might be insufficient to influence the rate of diffusion, the combination of these characteristic could influence the diffusion process.Diffusion studies have shown that innovations with advantages that are compatible with existing practices and beliefs, that are low in complexity, easy to use or easy to try out, and with visible benefits, would lead to a more extensive and faster diffusion than an innovation with the opposite characteristics (Dillon & Morris 1996: 3).
It is important to take note of the extent to which the use of technology diffuses across organisational processes and becomes an integral part of the tasks associated with that processalso known as assimilation (Fichman & Kemerer 1999: 255).Van de Ven (1986: 590) states that organisations could raise their levels of technological assimilation by influencing and motivating individuals' cognition and behaviour, as well as making use of more assimilation initiatives; thereby emphasising the important role that an organisation or institution could play in the assimilation process, and ultimately the use and acceptance of new technologies, such as e-textbooks in an organisation like a university.TAM posits that an individual's intention to use technology is determined by the perceived usefulness and by the ease-of-use of the new technology (Chau 1996: 185).TAM is an adaptation of the Theory of Reasoned Action (TRA), specifically tailored for modelling user-acceptance of information systems (Davis, Bagozzi & Warshaw 1989).Thus the use of e-textbooks (technology) is influenced by the perceived usefulness of e-textbooks, as well as the ease of using such e-textbooks in the academic setting.Perceived usefulness can be described as the degree to which a person believes that using a technology could improve his or her productivity (for example, a student believing that he or she will study easier or faster when using a e-textbook); while the perceived ease-of-use is the extent to which a person believes that using such a technology would be easy and effortless.Bennett and Landoni (2005) reported that many students and academics feel that currently the usability of academic e-books is too poor to offer an alternative to print books.Students need to perceive the technology (e-textbooks) as being useful, or they will not attempt to use it, regardless of how easy or difficult it is to use.Research has found that 'ease-of-use' is less important than 'usefulness' as the difficulty in using a new technology could be overcome if the user thinks that the technology would be useful (Chau 1996: 185).The Online Education Database (OEDb) report (2012) found that students prefer online learning courses instead of attending a traditional university due to convenience, comfort and affordability.These advantages could also be the key to the use of and preference for e-books in an academic setting.

Libraries and e-book collections
The distribution of information has primarily been done by libraries (Cassidy, Martinez & Shen 2012: 326).Therefore, the undertaking to improve access to information has brought libraries and librarians into the domain of e-books (Cassidy, Martinez & Shen 2012: 326).Libraries are said to be early adopters of e-books, and have been increasing their intake of academic e-books over the years (Gregory 2008: 267;Cassidy, Martinez & Shen 2012: 326).In order to allow for this increase in e-books, some libraries have been reducing their budget for print books, and have started diminishing their current print collections (Wu & Chen 2011: 305).The reverse is also true: many academic librarians are selecting e-books for their collections, but the constraints within some institutions cause them to continue to depend and focus largely on their print collection.Librarians handle information differently, and many have accepted e-books as a vital part of their libraries.Due to budget constraints in some institutions, however, librarians have had to use free e-books to add value to the electronic resources at their institutions.Libraries should not underestimate the importance of print collections to their students and should offer a combination of academic print and e-books (Gregory 2008: 271).As such, although librarians may prefer not to buy duplicate titles, it is sometimes preferable, whether in the same, or in different mediums (Wu & Chen 2011: 304).According to Gibbons in Gregory (2008), evidence has shown that including e-book titles in a library's catalogue leads to increased use of the collection as a whole.
As librarians and academics are confronted with decisions to buy or prescribe electronic textbooks, a growing need exists for more clarity on student perception and use of e-textbooks to enable better-informed decisions.According to Kahn and Underwood (2013), there are several reasons some librarians object to the introduction of e-books to their libraries.Some of these are that the e-book threatens the library's role as an archive; they hold the view that library users do not want e-books; privacy concerns (e-book use can be tracked); not being in control of title selections; and the reallocation of funds to e-books implying a smaller print collection, to name but a few.The e-book format could become more expensive for libraries to purchase, as some e-book formats require specialised software and hardware (Kahn & Underwood 2013: 15).Hamaker (2011) adds several other challenges of e-books, such as ownership disputes, licensing issues, and the difficulty of developing an e-reserve system, often needed in an academic setting.These challenges contribute to the debate around whether or not libraries should in fact be suppliers of e-books, and specifically etextbooks.Hamaker (2011) argues that "most e-books do not meet the long-term requirements of many libraries and their users for access, pricing, utility, and preservation" and the question should be asked if and how libraries should supply ebooks.
A Malaysian study found that as many as 50% of students became aware of the academic e-book service at their library via the library's website, while about 17% were referred to e-books by their lecturers, fellow students (13%), and the librarians themselves (13%) (Ismail & Zainab 2005): thus, emphasising the importance of a library's website to promote e-textbook collections and ultimately encourage e-textbook use by students.Shelburne (2009: 59-72) reported that students often do not use academic e-books simply because they do not know how to find them, especially in a library collection.Gregory (2008: 267) found that students who came across e-books while using the library's online catalogue were reluctant to use them.
As mentioned before, the majority of students still prefer to use print books rather than e-textbooks.It is partly the responsibility of the librarian to attempt to change this.E-books offer library staff and students certain advantages, such as the fact that they can be read on a computer monitor or mobile devices, and sometimes offer the option of printing certain sections for further reading or studying (Wu & Chen 2011: 295).Rosy (2002: 228) argues that e-books not only support the mission and vision of libraries but are also an efficient way to store and organise information, given space limitations.In addition, e-textbooks can provide users with up-to-date content and full-time availability.In this sense, libraries are changing from being simply storerooms to becoming information portals which provide access to, among other things, e-books and other electronic resources (Connaway, 2003: 13-18).As has been discussed, e-textbooks have many advantages.In order for readers to make full use of these advantages, libraries need to keep up with the changes in society, as well as those of students, and to organise their e-book collections in such a manner that would render etextbooks helpful and readily accessible.The introduction of the e-textbook was intended to be an alternative to print textbooks.However, due to libraries reducing their print collections in certain subjects, students have had no other choice but to turn to e-books (Gregory 2008: 269;Wu & Chen 2011: 303).Therefore, although e-textbooks are not necessarily preferred over print books, they are frequently the only available option for students.
Although several international studies have investigated the use of academic e-books (e-textbooks, in the context of this study) and the preferences of students, none could report conclusive results.Limited South African research is available on this topic.Being approached by a South African university library for some insight into e-book preferences was the impetus for this study.

Research questions
The objective of this study was to investigate undergraduate students' perceptions and use of e-textbooks in order for their university library to make better-informed decisions about its e-book collection.The following research questions were formulated:


Do students use print textbooks? Do students prefer print or e-textbooks? What is the role of price in buying a textbook? How easy is it to use e-textbooks? Which features are important when selecting an e-textbook? What could be done to improve the ease-of-use and the usefulness of e-textbooks in an academic setting? What role do librarians need to play in the e-textbook dilemma?

Research methodology
Although a quantitative research design was used, qualitative inputin the form of discussions with university librarianswere helpful to provide a better understanding of the context as well as serving as input for the questionnaire design.Second-year students registered at the University of Pretoria for Marketing Management during 2013 constituted the target population of this study.These students were the only group of students exposed to e-textbooks during the first and second semesters of the programme.The students purchased a printed version of the textbook, but also had free access to the electronic version via the library or the publisher.This group of students, therefore, had the opportunity to use an etextbook for the course at no additional cost.A census approach was taken as the entire second-year class was targeted, but the sample only included students who actually attended class and who voluntarily completed the survey, thus suggesting a non-probability, convenience sampling method.The key characteristics of the sample were that the majority (77%) of respondents were in the 19-21 age group, while the remainder were 22-26 years old (23%).Students from five faculties were reflected in the sample, with Economic and Management Sciences contributing 58%, Humanities 24%, and Natural and Agriculture Sciences, 15%.Marketing is a subject presented in the Economic and Management Sciences Faculty but which allows students from other faculties to enrol.The sample consisted of 31% (seventy-eight) males and 69% (176) females.Furthermore, the majority of the respondents were Whites (71%), followed by Africans (25%); while the 'other' group represented 4% of the sample, and consisted of Asian, Coloured and Indian respondents.A survey approach was used to collect the data in a classroom situation by using a self-completion questionnaire.The questionnaire consisted of demographic questions, such as gender, age, faculty/study, discipline, and race, as well as questions to determine students' access to various electronic devices, their perceptions, and their use of textbooks and etextbooks.Students' perceptions of e-textbooks were measured by using the five-point Likert scale (De Oliveira 2012: 536), with scale-point labels ranging from 1 (Strongly disagree) to 5 (Strongly agree).The questions and statements used to determine e-textbook usage were similar to those of Muir and Hawes (2013: 260), with regards to their approach to measuring the use of e-textbooks.The importance of various e-textbook features was measured on a five-point Likert scale, ranging from 1 (Not at all important) to 5 (Extremely important), as identified from previous research (Cassidy, Martinez & Shen 2012;De Oliveira 2012;Elias, Phillips & Luechtefeld 2012;Strother et al. 2009).The questionnaire was pre-tested to ensure the clarity of the questions; minor adjustments were subsequently made to the wording of some questions, in order to reflect a more South African context.No incentives were provided, and participation was completely voluntary.As this study was descriptive in nature, mainly descriptive analysis was used, such as frequencies and mean values, to address the research questions.

The findings
The findings of the study are presented below.

Print textbook usage
In order to provide context to the use of e-textbooks, it is important to know, firstly, whether students take their print textbooks to class and, secondly, how they use them.It is positive to note that the majority of students (75%) indicated that they usually take their print textbooks to class.Only 5% indicated that they never take their books to class, while 20% indicated that they sometimes take their print textbooks to class.The weight of the print book was given as one important reason for not taking it to class.Other students felt that they did not need their textbooks in class.A relatively small number of respondents (8%) indicated that they did not have a print textbook: that they shared one with a friend, due to the cost involved, or that they use the electronic textbook.It is also important to understand students' use of printed textbooks once they have completed the course, in order to provide the necessary context to understand the used textbook market.Almost 80% of students indicated that they sell their textbooks at the end of the year.Thus, the used textbook market could be influenced if e-textbooks only were to be used in this course.The impact of e-textbooks on student income should therefore be considered.

Electronic vs print textbooks
When students were given the option of using a print or an electronic textbook, only 15% indicated that they would prefer an e-textbook; 41% indicated that they would prefer a print textbook.However, 43% said that they would like to have both a promising statistic that suggests that combining the two offerings might be a strategy that publishers could use initially in order to motivate students to use e-textbooks, while still having the safety net of a printed copy.Students' preferences for e-textbooks are in line with their actual behaviour, as 70% of the students reported that they never or rarely take their electronic marketing textbooks to class; and only 13% indicated that they take their electronic marketing textbooks to all their classes.

The role of price in the textbook dilemma
When students were confronted with various scenarios regarding prices and textbooks and were questioned about their possible behaviour in these scenarios, the following transpired: almost half of the sample (47%) indicated that, if given the choice of a new print textbook, a second-hand print textbook and an e-textbook, they would prefer to buy the secondhand print textbook at a cheaper price; while 28% indicated that they would buy an e-textbook if it were 10-15% less expensive that a new print textbook.Only 24% indicated that they would buy a new print textbook at the regular price.It would seem as if students are price-sensitive; and perhaps the price of an e-textbook, rather than its functionalities, could be the deciding factor between buying a print textbook (new or second-hand) and an e-textbook.This finding seems to be in agreement with the argument that the increase in print book prices could have resulted in e-textbooks gaining popularity among students (Elias, Phillips & Luechtefeld 2012: 262).The price sensitivity around textbooks is further evidenced by the fact that almost 85% of students indicated that, if the price of the e-textbook was included in their class fees, and they were to receive it for 'free' when registering for the course, they would be willing to use it.Only 15% indicated that they would not use the e-textbook and would still prefer a print textbook, suggesting that a minority exists for whom price or cost is not the ultimately deciding factor and who are possibly swayed by other factors such as the familiarity or ease-of-use of printed books.

Ease of use of e-textbooks
Together with an e-textbook comes the need to have the required electronic device on which to read it.The majority of the students had access to smartphones (85%) and/or have their own laptops (83%).76% have access to university computer laboratories, 55% have access to desktops, and 41% have access to an iPad, or another type of tablet.It is thus evident that access to an electronic device is not a major barrier to using e-textbooks.The majority (97%) of students are computer literate: 61% indicated their computer literacy as average or expert (36%), and only 3% classified themselves as 'novices' when faced with technology.However, students interviewed agreed that they find it easier to study from a printed book.Although students do not lack computer skills or access, it seems as if 'ease-of-use' (as part of the TAM model) could still be a possible obstacle in the diffusion of e-textbooks.It might not be that students find it difficult to use e-textbooks but they find it easier to use print textbooks.Therefore, although some international studies report that students generally do not experience any major difficulties in the use of e-books (Wu & Chen 2011: 301) the results need to be compare to the ease-of-use of print textbooks.

Important features of e-textbooks
It is important for publishers, academics and librarians to know which features students consider to be important when buying or using e-textbooks.The features that the respondents regard as being important (ranked from the most important to the least important) are presented in Table 1.It is evident that convenience, access and reliability are the three most important features of e-textbooks for students.It is interesting to note that technical aspects, such as software packages needed and licensing are not as important.Furthermore, interactivityan e-book feature that one would think might be the major advantage of e-textbooksranks only thirteen out of seventeen.Perhaps students do not yet realise the benefits of the interactivity e-books could offer, as it is something they still need to experience.The fact that functions such as copy, paste and highlighting ranked highly might suggest that these activities are ones that assist study and the completion of assignments.It is interesting that, although portability was indicated as one of the main reasons print textbooks are not taken to class, the importance of etextbook portability ranked only eleventh.The positive environmental impact of e-textbooks is the least important feature for students.

Improving the ease-of-use and usefulness of e-textbooks
As usefulness and ease-of-use are both important aspects of the diffusion process according to the TAM model, respondents were asked to indicate what would make e-textbooks easier to use or more useful in their area of study.The results are reflected in Table 2.Note Students could choose more than one option It is evident from Table 2, that features that assist with studying and the completion of assignments are those that students are looking for.These features would also improve the usefulness of e-textbooks.However, one should also consider the importance of the 'copy-and-paste' functionality of e-books.This feature could be used as a shortcut for students to complete their assignments, signalling the importance of educating students on intellectual property, and particularly plagiarism, when using e-textbooks.Features that assist students to studyand the fact that 47% of the students think using e-textbooks could help them to improve their marksrelates well to two of the characteristics that could speed up the diffusion process: relative advantage and observability.Price issues are confirmed as almost half of the respondents indicated that they would use the e-textbook if its cost were included in their fees and 66% stated that they would use the e-textbook if it were cheaper than the print version.Currently it seems that reference group influences from friends or from opinion leaders, such as lecturers, were not very strong as only 26% and 7 % respectively, stated that they would use the electronic option if it were recommended.

E-textbooks and the library
When students were asked if they were aware of the availability of academic e-books in general in the library, they neither agreed nor disagreed with the statement.These results are similar to the findings of De Oliveira (2012: 536) who reported that students were indecisive about statements such as "I know where to access e-books".When asked more specifically about their use of e-textbooks in the library, the results were not very positive.Only 44% of respondents indicated that they knew how to access the e-textbook collection at the library; 24% said they rarely make use of it; 57% had never made use of e-textbooks from the library.Only 15% indicated that they use the electronic collection occasionally and only 3% made use of e-textbooks weekly.These results are despite the fact that the library has an extensive collection of academic e-books, including e-textbooks.Although almost half of the respondents indicated that they would like the library to buy more e-textbooks, the others did not see a need for it or did not care at all (38%).Of interest to South African librarians is that Folb, Wessels and Czechowski (2011: 218) reported that 35% of students surveyed in the USA were also not aware that their university had an e-book collection.Thus, this problem could be considered to be more common, rather than one confined to one specific university.

Discussion and institutional implications
It is evident that if publishers, universities, librarians or academics want students to make (more) use of e-textbooks in a university's library or in general, they would have to shape, influence and motivate this behaviour in order to enhance the assimilation process.Universities need to implement initiatives across the various faculties and support the staff to enhance the process.University management needs to determine how the university should position itself for a future with e-books in general, but more specifically e-textbooks, and what skills would be required of IT, libraries and lecturers.A major consideration in the e-textbook debate is the issue of price.E-textbooks should be more affordable.E-textbooks typically cost about the same as printed textbooks but they might expire at the end of the semester, and they frequently come with restrictions on printing.These issues negatively impact on the used-textbook market, thus, limiting the appeal of e-textbook use.Universities and libraries need to negotiate better structures for e-textbooks in order to improve the attractiveness of e-textbooks as a viable option for students.Could open access to e-textbooks perhaps increase their usage?Open access texts could solve many of the problems of e-textbooks, such as limited access and restrictions on printing and downloading.Morris-Babb and Henderson (2012), however, warn that open access does not mean no cost.Thus, open access might not ultimately be the solution to the cost problem of textbooks.
Applying the TAM model, students apparently do not find using e-textbooks as easy or as comfortable as using print books, neither do they find them more useful.As a result, there has been a slow diffusion of the e-textbook.The focus therefore needs to be both on the ease of use and on the perceived usefulness of this innovation.E-textbooks are not just the electronic version of printed books; they also provide students with an interactive platform from which to engage in learning.These advantages need to be emphasised in order to ensure that students realise the usefulness of etextbooks.Students need to be convinced that e-textbooks are useful in enhancing their studying processand, ultimately, in improving their marks.
Diffusion studies have shown that innovations affording advantages, compatibility with existing practice and beliefs, low complexity, potential trialability, and observable gains would make diffusion faster and more extensive.These findings, coupled with those of this study, highlight the importance of lecturers and librarians referring students to and encouraging them to make use of e-textbooks.A library with an e-textbook collection could increase the trialability of etextbooks as there is no or low risk and no additional cost involved for students to try out the e-collection.By educating students about the special features of e-textbooks, such as interactivity, and by highlighting these options, librarians and lecturers could enhance students' learning experiences (advantages) and ultimately their marks (observable gains), and thus ensure a faster diffusion of e-textbooks in the academic setting.It is important for librarians to take note of trial results, as merely expanding the e-collection would not help much, unless students are made aware of what is available and shown how to access it.Herein lies the role of librarians: they should not only educate students around use, but also market their e-collections via their webpages, information and orientation sessions for first-year students, brochures or campus-wide email announcements.Librarians need to take into consideration that their marketing strategies should focus on promoting academic e-books more effectively on their websites, ensuring that students know about them and how to access them, ensuring that the usage patterns of students and faculty are better understood.It is also important that library communications and websites reflect the online environment by using terms and words that are associated with the online, interactive context of e-books.Students love libraries but do not necessarily associate them with technology (OCLC 2010).Libraries need to position themselves as places that provide current information in an easily accessible format (e-books) as well as technology at students' fingertips to allow work to be done quickly, conveniently and easily.Libraries must also play a proactive role in educating students on issues such as intellectual property and especially plagiarism.It is important that a university has a clear interpretation of, and policy concerning, copyright and the interpretation of digital content.

Conclusion
Publishers and universities alike need to be aware of the role of price in the possible acceptance of e-textbooks, and the possibility that more affordable e-textbooks could provide a relief for students against increasing academic costs.Emphasis needs to be placed on the perceived usefulness of e-textbooks, indicating how their use could enhance a student's productivity.Lecturers need to include e-textbooks in their courses, as well as class discussions, in order to increase student involvement in learning.The moment students perceive an e-textbook as possibly being more helpful than a print textbook, they would be more likely to use it on a regular basis.
E-textbooks are creating interesting teaching and learning possibilities; yet, e-textbook technology is just beginning to be explored.There is still a lack of consensus with regards to the real advantages of e-textbooks as opposed to print textbooks.As suggested by Woody, Daniel and Baker (2010), more research is needed to determine the suitability of etextbooks as learning tools.Only then can academics recommend or require them as a substitute for print textbooks.The technology landscape that continues to empower consumers has set new expectations for library users.It is up to universities, and more specifically libraries as distributors of information, to take the lead to develop guidelines, processes, and technologies to deal with e-books in general and e-textbooks specifically, and manage this electronic challenge successfully.By doing so, libraries could play a role in designing the future environment in which they will have to operate.If libraries aren't actively involved in establishing e-book policies, publishers will create policies to their advantage and, if libraries are not engaging with e-books, users may turn elsewhere, increasingly thinking of the library as a place they love but do not use.
No study is without its limitations and the non-probability sample in a single context is a limitation in this study.Future research is needed to determine the effect of e-textbooks on students' learning activities and performances as well as students' user habits before e-textbooks can be considered a viable alternative to the printed textbook.The open access solution to e-textbooks also warrants further exploration.