The Library of Congress is the nation's oldest federal cultural institution, and it serves as the research arm of Congress. It is also the largest library in the world, with more than 162 million items. The collections include books, sound...
Search Library of Congress finding aids by keyword. Browse finding by collection, date, LC location, name, name/title, and subject. Finding aids are XML documents created using the Encoded Archival Description (EAD).
The Linked Data Service provides access to commonly found standards and vocabularies promulgated by the Library of Congress. This includes data values and the controlled vocabularies that house them. Datasets available include LCSH,...
We encourage you to ask a specialist using one of the links below. To ask a general question or browse our FAQs use the tabs above. Areas offering chat service are indicated using the "chat" icon . Other Ways to Connect We offer online chat service from Monday-Friday, 12:00-4:00 pm (ET). Related...
Crowdsourcing project By the People invites anyone to become a Library of Congress virtual volunteer. Explore, transcribe, review, and tag digital collections to improve search and readability and open new avenues of research.
Index of Library of Congress Research Guides Research guides to the Library's collections, as well as subject guides prepared by Library of Congress staff, are listed below. More online guides covering other Library of Congress collections are available via the
Contains over 20 million catalog records for books, serials, manuscripts, maps, music, recordings, images, and electronic resources in the Library of Congress collections.
EBSCO Search Application for Publications.
Contains over 300,000 catalog records for talking books, braille books, music scores, magazines, and other accessible material in the National Library Service for the Blind and Print Disabled collection.
The Library of Congress's mission is to engage, inspire, and inform Congress and the American people with a universal and enduring source of knowledge and creativity. Our vision is that all Americans are connected to the Library of...