Many state governments have extensive Web sites that include directory, program, and statistical information. Many libraries have access to catalogs of other libraries in their state or region. There are many guides to help one find out about books and magazines in general. Magazines can be identified in such bibliographies as Standard Periodical Directory, Gale Directory of Publications and Broadcast Media, and Ulrich's International Serials Directory. Several of these publications are offered online as well.
Online booksellers make it easy to find if titles are currently for sale.
This document was produced by the Congressional Research Service.