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Explore the world's largest library with historic collections, exhibitions, events and programs. Learn about the Library's role in U.S. federal legislative information and copyright protection.
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The Library of Congress is the largest library in the world,...
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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.
- Office of The Librarian
- Congressional Research Service
- Copyright Office
- Law Library
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The Office of the Librarian is the administrative branch of the Library of Congress and has overall management responsibility for the Library. It sets policy and directs and supports programs and activities to accomplish the Library’s mission.
CRSexclusively serves Congress by providing confidential, objective and authoritative research and analysis to help inform the legislative debate.
The U.S. Copyright Officeadministers the Nation’s copyright laws for the advancement of the public good, offers services and support to authors and users of creative works, and provides expert impartial assistance to Congress, the courts and executive branch agencies on questions of copyright law and policy.
Congress established its Law Libraryin 1832, recognizing its need for ready access to reliable legal materials. The Law Library has grown over the years to become the world’s largest law library, with a collection of over three million volumes spanning the ages and covering virtually every jurisdiction in the world.
Learn about the mission, organization and services of the largest library in the world and the main research arm of the U.S. Congress. Explore the Library's collections, access to knowledge, and strategic plan online or in person.
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Apr 21, 2024 · Library of Congress, the de facto national library of the United States and the largest library in the world. Its collection was growing at a rate of about two million items per year; it reached more than 170 million items in 2020.
- James H. Billington
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.
Find the latest bills, committee hearings, floor calendars, and reports from the 118th Congress (2023-2024). Learn about the Constitution, CRS, and Law Library of Congress resources for Congress.
Browse provides a single search box for finding words and phrases in titles, authors/creators, subjects, call numbers, and standard numbers and arranging the results in an ordered alphabetic or numeric list. The Browse shortcut URL is: https://catalog.loc.gov/browse.