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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.
Visiting the Library. We’re excited to welcome you to the Library of Congress. Free timed-entry tickets are required to enter the Library’s Thomas Jefferson Building. We encourage you to take a moment to review our Know Before You Go page to prepare for a safe and enjoyable visit.
The Library of Congress (LOC) is a research library in Washington, D.C., that serves as the library and research service of the U.S. Congress and the de facto national library of the United States. Founded in 1800, the library is the United States's oldest federal cultural institution.
The Library of Congress is the largest library in the world, with millions of books, films and video, audio recordings, photographs, newspapers, maps and manuscripts in its collections. The Library is the main research arm of the U.S. Congress and the home of the U.S. Copyright Office.
Browse Options. Browse offers four types of searches: Searches against controlled lists of authors/creators, subjects, names/titles, and series/uniform titles used by the Library of Congress - along with cross-references. These controlled terms are referred to as "authorized headings."
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 LC Bibliographies, Research Guides and Finding Aids page.
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The Library of Congress provides Congress with objective research to inform the legislative process, administers the national copyright system, and manages the largest collection of books, recordings, photographs, maps and manuscripts in the world.
U.S. Congress legislation, Congressional Record debates, Members of Congress, legislative process educational resources presented by the Library of Congress.
May 16, 2024 · The content of all comments is released into the public domain unless clearly stated otherwise. The Library of Congress does not control the content posted. Nevertheless, the Library of Congress may monitor any user-generated content as it chooses and reserves the right to remove content for any reason whatever, without consent.
Watch presentations from authors, scholars & artists who come to the Library. Search millions of items in many formats and languages. Explore a growing treasury of digitized materials. Consult with staff online or in one of the research centers to find what you're looking for.
