V-19b: Master Public Librarians, Absolute Number and as a Percentage of All Public Librarians, Fiscal Years 1995–2010*
* All values presented are for the 50 U.S. states and the District of Columbia. Calculations were performed on all surveyed libraries, including those that did not meet Institute of Museum and Library Services criteria for public libraries.
Source: U.S. Department of Education, National Center for Education Statistics, Public Libraries Survey (1995–2005); and Institute of Museum and Library Services, Public Libraries in the United States Survey (2006–2010).
The trend presented here is based on data points, published by Institute of Museum and Library Services (IMLS) and the National Center for Education Statistics, that were calculated for all public libraries surveyed, not only those that met IMLS criteria. In 2010, IMLS began publishing information for only those entities that it considers public libraries. Since the 2010 findings were not comparable to values for earlier years, the Humanities Indicators (HI) staff recalculated the 2010 values for all surveyed libraries. The HI hopes in the near future to be able to present, for the years 1995 and forward, data points based on only those organizations that can be considered public libraries under the IMLS definition.