AACR (Anglo-American Cataloguing Rules)

AACR (Anglo-American Cataloguing Rules) are a set of guidelines used by libraries to organize and describe their collections. They ensure consistency in how items like books, maps, and recordings are cataloged, making it easier for users to find and identify resources. By establishing standard rules for titles, authors, publication details, and subject descriptions, AACR helps create uniform and comprehensive catalogs across libraries worldwide. This systematic approach improves accuracy, efficiency, and interoperability in library cataloging practices.