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Does Use of E-Books Impact Use of P-Books?

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Brown, Christopher C. and Michael Levine-Clark, “Does Use of E-Books Impact Use of P-Books?” Electronic Resources & Libraries (ER&L), Austin, Texas, April 4, 2012.

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Does Use of E-Books Impact Use of P-Books?

  1. 1. Does Use of E-Books Impact Use of P-Books? Electronic Resources & Libraries Austin, April 4, 2012 Christopher C. Brown Michael Levine-Clark
  2. 2. Does Use of P-Books Impact Use of E-Books?
  3. 3. Methodology
  4. 4. Publisher A• U.S. University Press• Added Dec 2008• Purchase all e/p• 1,368 e-books – Frontlist approximately 120 per year – Backlist• 2,175 p-books• 888 in both formats
  5. 5. Publisher B• Large STM• Added January 2009• Purchase all e• 27,825 e-books – Frontlist approximately 4,000 per year – Backlist• 18,693 p-books• 4,099 in both formats
  6. 6. The Data• Gathered circ data – Through December 2008 – Each subsequent December (2009-2011) – Cumulative• Compiled e-book use data – At end of each year, 2009-2011 – For each year
  7. 7. Apples and Oranges• pBook checkouts – Undergrad: 3 weeks – Grad: 10 weeks – Faculty: 1 year – Potentially many uses per checkout, and some when deciding to checkout• eBook use – One time in the book is one use
  8. 8. About Discovery and Data• Discovery through catalog records• Data merger issues: – Title variations – ISBN complexities – Multi-volume issues
  9. 9. E and P Typically Pattern Together in Results Classic Catalog Encore (next-gen) Catalog
  10. 10. Data Difficulties: Title Variations Catalog Record Vendor Record The Sri Lanka reader : history, culture, politics / World Readers : Sri Lanka Reader : History, John Clifford Holt, ed. Culture, Politics Julia Childs The French chef / Dana Polan. Spin Offs : Julia Childs The French Chef Strange affinities : the gender and sexual politics Perverse Modernities : Strange Affinities : The of comparative racialization / edited by Grace Gender and Sexual Politics of Comparative Kyungwon Hong & Roderick A. Ferguson. Racialization The war machines : young men and violence in Cultures and Practice of Violence : War Machines : Sierra Leone and Liberia / Danny Hoffman. Young Men and Violence in Sierra Leone and Liberia Uomo delinquente. English.Criminal man / Cesare Criminal Man Lombroso ; translated and with a new introduction by Mary Gibson and Nicole Hahn Rafter, with translation assistance from Mark Seymour. Hegel e la libert├á dei moderni. English Hegel and Hegel and the Freedom of Moderns the freedom of moderns / Domenico Losurdo ; translated from the Italian by Marella and Jon Morris. Perversion and the social relation / Molly Anne SIC, Volume 4 : Perversion and the Social Relation Rothenberg, Dennis Foster, and Slavoj Žižek, editors.Vendors and catalogers don’t necessarily agree on title formation.
  11. 11. Data Difficulties: Multiple ISBNs
  12. 12. Data Difficulties: ISBN 10? ISBN 13?
  13. 13. Data Difficulties: ISBN Irregularities Note the ISBN10 with ISBN 13, the parentheses, and the multiple ISBN numbers
  14. 14. Data Solution: Create an ISBN 9ISBN 9 eliminates the ISBN 13 – 978 prefixand the final check-digit, creating a useablematch-point, in cases where the electronicand print versions agree on base ISBN.
  15. 15. Data Methodology using Microsoft Access• Get use annual use stats of ebooks from vendor• Get master list of e titles from vender.• Derive ISBN9 for each list for proper overlay• Overlay annual use stats onto master list of e books• Get circ stats for print books from ILS• Derive master list of all print titles from ILS• Derive ISBN 9 for each p title.• Overlay annual circ stats onto master list of p books• Merge circ and use data together• Repeat for other publisher!
  16. 16. Data Conclusions• Microsoft Access for overlays; Microsoft Excel for analysis• Better standards are needed – a single ISBN, please!• Overlay on title is nearly impossible• Deriving an “ISBN9” was the only way to get anywhere, but even this was far from perfect
  17. 17. Usage
  18. 18. eBooks• Publisher A – 502 titles used (36.7%) – 27,640 uses • 55.1 per title used • 20.2 per title – 866 titles not used• Publisher B – 576 titles used (2.1%) – 3,930 uses • 6.8 per title used • 0.1 per title – 27,249 titles not used
  19. 19. pBooks• Publisher A – 1,435 titles used (66.0%) – 4,196 checkouts (2,727 before Dec 2008) • 2.9 per title used • 1.9 per title – 740 titles not used• Publisher B – 7,103 titles used (38.0%) – 16,778 checkouts (13,570 before Dec 2008) • 2.4 per title used • 0.9 per title – 11,590 titles not used
  20. 20. Most Used eBooks, Publisher A• Poor People’s Politics: Peronist Survival Networks and the Legacy of Evita (2001) – 2,174 uses (all in 2011) – 4 checkouts (1 before Dec 2008, 1 in 2010, 2 in 2011)• Museum Frictions: Public Cultures/Global Transformations (2006) – 1,003 uses (824 in 2010) – 4 checkouts (2 before Dec 2008, 1 in 2010, 1 in 2011)
  21. 21. Most Used eBooks, Publisher B• Automata, Languages, and Programming: Sixth Colloquium (1979) – 606 uses (561 in 2011) – 0 checkouts• Naive Lie Theory (2008) – 46 uses (45 in 2009) – 0 checkouts
  22. 22. Most Used pBooks, Publisher A• Argumentative Turn in Policy Analysis and Planning (1993) – 37 checkouts (36 before Dec 2008) – 9 uses of the e-version• Culture, Power, Place: Explorations in Critical Anthropology (1997) – 24 checkouts (21 before Dec 2008) – 14 uses of the e-version (11 in Dec 2008)
  23. 23. Most Used pBooks, Publisher B• Resilience and Development: Positive Life Adaptations (1999) – 18 checkouts (17 prior to Dec 2008 – 0 uses of the e-version• AIDS in Africa (2002) – 17 checkouts (15 prior to Dec 2008) – 0 uses of the e-version
  24. 24. Dual Format Use• Publisher A – 325 titles used in both formats • 20,619 e-book uses – 63.5 per title used • 1,229 p-book checkouts (743 before Dec 2008) – 3.8 per title used• Publisher B – 356 titles used in both formats • 2,566 e-book uses – 7.2 per title used • 930 p-book checkouts (422 before Dec 2008) – 2.6 per title
  25. 25. P Used, E Not• Publisher A – 394 titles – 952 checkouts • 2.4 per title used• Publisher B – 1,401 titles – 2,547 checkouts • 1.8 per title used
  26. 26. E Used, P Not• Publisher A – 177 titles – 7,021 uses • 39.7 per title• Publisher B – 219 titles – 1,364 uses • 6.2 per title
  27. 27. eBook Usage Levels (per title)
  28. 28. pBook Usage Levels (per title)
  29. 29. How Closely Are P/E Usage Linked?
  30. 30. Increased Checkouts, 2008-2011• For titles available at the start of the project (Dec 2008), how many more checkouts were there by Dec 2011?• Was that increase linked in any way to e- usage?
  31. 31. Increased Checkouts 2008-2011• Publisher A – 1,057 titles with increased checkouts – 707 had no e-availability – 192 also had e-use • 75.6 uses per title – 158 had no e-use• Publisher B – 2,023 titles with increased checkouts – 1,398 had no e-availability – 177 also had e-use • 7.0 uses per title – 449 had no e-use
  32. 32. Observations• Use of E doesn’t seem to lead to use of P• Use of P doesn’t seem to lead to use of E• If both formats are used, they are both used at a higher rate than average
  33. 33. Further Questions• Might there be differences – By subject? – By date?• What sort of measure of time in a book can we look at?• How does discovery play in?
  34. 34. Thank You

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