Demand-Driven Acquisitions: Implications for STEM Collections ACRL STS Publisher/Vendor Relations Discussion Group ALA Midwinter Meeting San Diego January 9, 2011 Michael Levine-Clark Collections Librarian

University of Denver Circulation (Titles Cataloged ) % 38.2% 212.8% 120.6% 039.6% 126,953 titles

The Universe of Titles 170,663 books published in the U.S. in 2008* 53,869 books treated on approval by Blackwell in FY 2008 (North America) 23,097 forms generated in FY 2008 *Library and Book Trade Almanac 2009, p. 506 (preliminary data).

The University of Denver Plan Print and Electronic Books YBP, EBL Slips – Discovery through the catalog – Delivery to user POD (eventually) Automatic approval books will continue to come automatically (for now)

The EBL Model First five minutes: free First three uses: STL 1 or 7 days Fourth use: purchase

EBL Data May-December, 2010 – 51,644 titles available – 103 titles purchased --2,181 STLs (short-term loans) 187 titles with 3 STLs (561 loans) 207 titles with 2 STLs (414 loans) 1,202 titles with 1 STL (1,202 loans) – 4,344 browses (under 5 min = free) 3,046 titles

EBL Costs ActualList 103 titles purchased$8,173$8,173 1,602 titles with STL*$20,765$127,119** 2,125 titles with browse$0$168,619** Total (3,185 titles)$28,938$303,914 Savings$274,976 *Doesn’t include purchased titles with STL **Average of $79.35/title based on 103 titles purchased (average across EBL closer to $100)

EBL STEM vs All STLsPurchases STEM35418 All Subjects STEM %15.2%17.1% STEM as % of EBL14.5%

EBL STEM Titles STLsPurchases Computer Science17311 Mathematics262 Sciences361 Medicine652 Engineering/Tech542

DDA and STEM High publication to purchase ratio (Often) a short shelf life Complex subjects

Thank You Michael Levine-Clark