Library of Congress

The Library of Congress serves the Congress in fulfilling its duties and preserves and promotes knowledge and creativity for the benefit of the American people. It is the nation's oldest federal cultural institution and the world's largest library, with more than 145 million items in its physical collections (including books, manuscripts, prints, photos, film, video, and sound recordings) and almost 20 million items online. Located on Capitol Hill inWashington,D.C., the Library is the home of the U.S. Copyright Office, the Congressional Research Service (CRS), the Law Library of Congress and the National Library Service for the Blind and Physically Handicapped.