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Website. loc .gov. 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. [3] Founded in 1800, the library is the United States's oldest federal cultural institution. [4]
The Library of Congress Classification ( LCC) is a system of library classification developed by the Library of Congress in the United States, which can be used for shelving books in a library. LCC is mainly used by large research and academic libraries, while most public libraries and small academic libraries used the Dewey Decimal ...
The Library of Congress Subject Headings ( LCSH) comprise a thesaurus (in the information science sense, a controlled vocabulary) of subject headings, maintained by the United States Library of Congress, for use in bibliographic records. LC Subject Headings are an integral part of bibliographic control, which is the function by which libraries ...
The National Union Catalog (NUC) is a printed catalog of books catalogued by the Library of Congress and other American and Canadian libraries, issued beginning in the 1950s. The National Union Catalog is divided into two series: the Pre-1956 Imprints is a 754-volume set containing all older records in a consolidated alphabetical format, while ...
The Library of Congress is so huge that it takes in three separate buildings on Capitol Hill; the Thomas Jefferson Building, the John Adams Building, and the James Madison Memorial Building. With ...
December 21, 1965 [1] The Thomas Jefferson Building, also known as the Main Library, is the oldest of the Library of Congress buildings in Washington, D.C. Built between 1890 and 1897, it was initially known as the Library of Congress Building. In 1980, the building was named in honor of Thomas Jefferson, a Founding Father, the principal author ...
This is a conversion chart showing how the Dewey Decimal and Library of Congress Classification systems organize resources by concept, in part for the purpose of assigning call numbers. These two systems account for over 95% of the classification in United States libraries, and are used widely around the world.
The U.S. Congress has asked the Library of Congress to lead a collaborative project, called the National Digital Information Infrastructure and Preservation Program. In December 2000, Congress passed special legislation (Public Law 106-554) in recognition of the importance of preserving digital content for future generations, appropriating $100 ...