Friday, August 11, 2017

Ebook collection analysis

Two publications recently came across my desk: the May/June 2017 Library Technology Reports called Applying Quantitative Methods to E-Book Collections by Melissa J. Goertzen, and the June 2017 issue of Computers in Libraries called Ebooks Revisited. This suggests that as ebooks continue to be a large collection issue for libraries on various levels (platforms, pricing, patron-drive acquisition (PDA) and demand-driven acquisition (DDA), discovery records, etc.) we are reaching a point where we can more fully evaluate the long-term impact they are having on our patrons and our budgets. I was particularly interested in the Computers in Libraries article called Ebook ROI: A Longitudinal STudy of Patron-Driven Acquisition Models by Yin Zhang and Kay Downey. The authors work at Kent State University Libraries and have been using a PDA program for five years now; they were able to use this long-term data to evaluate the usefulness of short term loans, determine if PDA purchases continue to be used after the purchase is triggered, and and analyze what books from various publication years and subject areas are purchased under their PDA profile. I found this study inspiring; we have only had our DDA program for less than one year, but I hope to conduct a similar analysis after a full year of the program and regularly thereafter so we can be sure our patrons are finding the program useful.

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