Featured Links
- LC Classification Outline
- MARC 21 Documentation
- BIBFRAME (Bibliographic Framework Initiative)
- The Library of Congress at ALA (updated for 2016 ALA Annual)
Catalogs
Library of Congress Online Catalog
Contains 18 million catalog records for books, serials, manuscripts, maps, music, recordings, images, and electronic resources. Search the LC Online Catalog
Library of Congress Authorities
Browse and view authority headings for subjects, names, titles and name/title combinations. Browse LC Authorities
Prints and Photographs Online Catalog (PPOC)
Search and view digital images representing a rich cross-section of still pictures held by the Library. Search PPOC
Finding Aids: Encoded Archival Description
A gateway to this wealth of Library treasures, helping you discover and navigate through the thousands of boxes and folders that house each collection. Search and Browse Finding Aids
Sound Online Inventory & Catalog (SONIC)
Search a catalog of 78s, 45s, copyright cassettes and broadcast and archival recordings. Search SONIC
Z39.50 Gateway to Library Catalogs
Gateway access to the Library of Congress catalog as well as other libraries across the globe. Search the Z39.50 Gateway
Reading and Literacy
People
Products & Services
- Ask a Librarian
- Catalog Tools & Products (CDS)
- Duplication Services
- Emergency Preparedness
- Interlibrary Loan
- Publications, Reports, Speeches
Best Practices & Standards
- Authorities/Vocabularies (id.loc.gov)
- Finding Aids (EAD)
- Future of Bibliographic Control
- ISO 639-2 | 639-5 (language codes)
- MARC Standards
- Metadata (METS, MODS, PREMIS)
- RDA: Resource Description & Access
- Recommended Formats Statement
- Search/Retrieval (SRU, Z39.50)
- Thesauri & Controlled Vocabularies