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Linked Data Service

A Linked Data Service for Authority and Bibliographic Metadata

The Linked Data Service ( provides interactive and machine access to the Library's authority and bibliographic metadata, along with commonly-found standards and vocabularies used and/or maintained by the Library of Congress. Each controlled vocabulary list has a resolvable URI, as does each data value within it. Ontologies for several major data element sets are also available. URIs accessible at link to bibliographic descriptions and controlled vocabularies and the values within them. This data service does not provide access to the physical or electronic holdings of the Library. Documentation of the Linked Data Service can be found at (