Presentation given at the XXVIII Annual Charleston Conference: Issues in Book and Serials Acquisitions, November 5 - 8, 2008. After the conference, Price and McDonald have verified their results using the xISBN work ID, which allows grouping of the various unique ISBNs that refer to the same intellectual work (e.g.cloth vs paperback). Wrangling these nearly 15 million lines of data took quite a while, and did not result in a substantive change to their results: only about 30% of the print books purchased during 2006-2007 by any of the 5 libraries they studied were available from the e-book aggregator marketplace.
© 2008 Jason S. Price and John D. McDonald
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Price, Jason S. and McDonald, John D., "To Supersede or Supplement: Profiling Aggregator e-Book Collections vs. Our Print Collections" (2008). Library Staff Publications and Research. Paper 10.