Services
Acquisitions
Discover how the Library of Congress acquires materials for its collections and for other research institutions.Archival Description
Search & browse examples, standards, and help for creating catalog records and finding aids for discovery and use of personal papers, organizational records, and other archival collections.Ask a Librarian
Have a research question? Need help using the Library? Get expert assistance from librarians & research subject specialists.Cataloging, Classification
The Library's cataloging services include search vocabularies, classification, policy, products, training & cooperative programs.Cooperative Cataloging Programs
The Library is committed to cooperative cataloging to benefit the world-wide library community. Shared standards & policies enable efficiencies & data sharing on a global scale.Copyright
The U.S. Copyright Office, a department of the Library, administers the Nation’s copyright laws and offers services and support to authors and users of creative works.Duplication Services
Providing digital, microfilm & paper copies, as well as custom reproductions for a fee from the Library’s collections.Interlibrary Loan
Your local library can borrow materials from the Library of Congress on your behalf. Here's how.Law Library
Comprehensive research & reference service to Congress & the public on foreign, comparative, international & U.S. law.Library Card (Reader Registration)
Here's how you can get your Library-issued Reader Identification Card & begin research here in Washington, D.C.Library Standards
The Library and associated organizations maintain key technical standards used in the library community.Linked Data Service
Access and download controlled vocabularies & authorities useful for describing and indexing information resources.Preservation
Learn about the research, science & collaboration involved in preserving the Library's collections.Publishing
Resources for publishers, editors & the public interested in Library publications and co-publishing opportunities.Resource Description & Access
Information on RDA implementation, including cataloging policy, practices, training & more.