This report marks the first release of library statistics data from the Institute of Museum and Library Services. It contains data on state library agencies in the 50 states and the District of Columbia for state fiscal year (FY) 2006. The data were collected through the State Library Agencies (StLA) Survey, the product of a cooperative effort between the Chief Officers of State Library Agencies (COSLA), the U.S. National Commission on Libraries and Information Science (NCLIS), the National Center for Education Statistics (NCES), and the U.S. Census Bureau. This cooperative effort makes possible the 100 percent response rate achieved for this survey. The frame or source of the list of respondents for this survey is based on the list that COSLA maintains of state library agencies. The FY 2006 survey is the 13th in the StLA series. The data upon which this report is based are final.