This report presents statistical pictures of New York State public libraries and public library systems during the calendar year 1990. The information is derived from the 1990 Annual Report for Public Libraries and Annual Report for Public Library Systems forms. Three statistical pictures of public libraries are presented. First, statistics for libraries are grouped by library system or nonsystem, and facts about library operations for each public library are presented, including resources, use, and finances. Libraries are grouped by library system, then by county within each library system. Statistics for all branches and other outlets are included within the statistics for the main library. Secondly, statistics for all libraries and library systems are grouped by size of population and selected facts about library operations and finances by population size are given, from largest to smallest. Thirdly, statistics on whether public libraries meet the 1988 proposed minimum public library standards are provided. The libraries are then grouped by library system or nonsystem. Appended to the report are the annual report forms and instructions for public libraries and public library systems, codes for selected tables, keys to abbreviations, an index by county, and an index by library. (MAB)