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Library of Congress Subject Headings (LCSH)

Online Resources

  • Library of Congress Authorities 
    Site for browsing authority headings for Subject, Name, Title, and Name/Title combinations and downloading authority records in MARC format for use in a local library system.
  • Library of Congress Linked Data Service
    The Library of Congress Linked Data Service provides both interactive and machine access to commonly used ontologies, controlled vocabularies, and other lists for bibliographic description. The Linked Data version of the Authorities search. 

Print Resources

Faceted Application of Subject Terminology (FAST)

FAST (Faceted Application of Subject Terminology) is a project based on Library of Congress Subject Headings and developed in collaboration between OCLC Research and the Library of Congress. The main idea is to retain the richness of LCSH while simplifying its use. 

Online Resources

  • FAST Homepage 
    Information and background on the development and maintenance of FAST. This page also includes links to presentations and publications about FAST as well as downloadable datasets. 
  • FAST Search Interface 
    The searchFAST user interface is an access point for discovery and selection of headings.