Public libraries study

Public Libraries in the United States: FY2005
The U.S. National Center for Educational Statistics released a report that includes national and state summary data on public libraries in the 50 states and the District of Columbia. The report, based on data from the Public Libraries Survey for fiscal year 2005, includes information on population of legal service area, service outlets, library collections and services, full-time equivalent staff, and operating revenue and expenditures.
U.S. National Center for Educational Statistics. (2007). Public Libraries in the United States: Fiscal Year 2005. Washington, DC: U.S. National Center for Educational Statistics. http://nces.ed.gov/pubsearch/pubsinfo.asp?pubid=2008301