OhioLINK and OCLC Research have released a report of, and the data set used in, a joint study of OhioLINK circulation, to better understand the usage patterns of books in academic libraries and support further research in this area. The study, which incorporated usage data from 2007-2008, was limited to books and manuscripts because these materials typically circulate, and circulation is a significant element in evaluating collections.
The report, OhioLINK—OCLC Collection and Circulation Analysis Project 2011, provides an overview of the study, a description of how the data was analyzed and made available, and suggested uses for the data. The report is accompanied online by an extensive set of Excel spreadsheets that analyze the usage patterns observed in the study.
The data used in the report was from a collaborative OCLC-OhioLINK Collection and Circulation Analysis project that joined OhioLINK circulation data with WorldCat bibliographic records to produce a base file of circulation records for nearly 30 million different books. Ninety institutions participated in the study, including 16 universities, 23 community/technical colleges, 50 private colleges and the State Library of Ohio. The size of the combined collection and the number and diversity of participating institutions make this by far the largest and most comprehensive study of academic library circulation ever undertaken.