The Top 25 US Public Libraries' Collective Collection, as Represented in WorldCat
by: Brian Lavoie
This paper presents some characteristics of the collective collection of the top 25 US public libraries, ranked by collection size. The statistics reported here are based on data from a July 2011 copy of the WorldCat bibliographic database. The data reflects institutional collections as they are cataloged and represented in WorldCat. The accuracy of holdings data in WorldCat may be lessened by the presence of duplicate records, cataloging errors, and other sources of inconsistency.
Lavoie, Brian. 2011. The Top 25 US Public Libraries' Collective Collection, as Represented in WorldCat. [A briefing paper prepared for the National Digital Public Library Conference Los Angeles Public Library 15-17 November 2011.] http://www.oclc.org/research/publications/library/2011/lavoie-ndpl.pdf (.pdf: 712K/ 12pp.).