Welcome to LC Catalog
Contains 18 million catalog records for books, serials, manuscripts, maps, music, recordings, images, and electronic resources in the Library of Congress collections.
- Browse Find titles, authors/creators, subjects, call numbers, or standard numbers in alphabetical or sequential lists, with cross-references.
- Advanced Search Combine search words using guided menus.
- Keyword Search Find search words anywhere in the catalog record. Includes Keyword (Expert) search.
- Ask a Librarian Email a question to an LC subject specialist
- Research Centers Explore Library reading room services and operations
- FAQs for Research Find answers to common questions from Library patrons
- Reader Registration Learn how to obtain an LC reader identification card
Additional Catalogs & Research Tools
The LC Catalog is the main access point for the Library's collections. Click on the links below to use specialized catalogs and tools for additional LC resources:
- Archival Finding Aids Guides to unique Library of Congress archival collections
- Copyright Office Catalog U.S. Copyright registrations and ownership documents, 1978-present
- Handbook of Latin American Studies Annotated bibliography of scholarly works on Latin America
- NLS Online Catalog National Library Service for the Blind and Print Disabled braille and talking books
- Prints and Photographs Online Catalog Prints & Photographs Division holdings, including over 1 million digital images
- Thesauri & Controlled Vocabularies Controlled search terms with a full network of cross-references. Includes LC Subject Headings.
- LC Authorities Headings and cross references for subjects, names, titles, and name/title combinations
- E-Resources Online Catalog Subscription and free databases, ejournals, and ebooks accessible at the Library
- LC Linked Data Service Commonly found standards and vocabularies promulgated by the Library of Congress (id.loc.gov)
- Primo Central Single search for articles and ebooks in selected subscription and free resources available at LC
- Sound Online Inventory and Catalog (SONIC) Broadcast and archival recordings, including 78s, 45s, and Copyright tapes
- Z39.50 Gateway to the LC Catalog Alternate search gateway to the LC Catalog