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Library of Congress Control Numbers are record identifiers assigned by the Library of Congress to bibliographic and authority records. First established when the Library began printing catalog cards in 1898, these unique identifiers are assigned to records created when materials arrive at the Library.
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.
To search authority records directly, please go to Library of Congress Authorities at https://authorities.loc.gov/. For more information, see About Library of Congress Authorities. What do the different numbers mean on an LC Catalog record? How do I search for these numbers? Records in the LC Catalog contain a variety of numbers, including:
Browse provides a single search box for finding words and phrases in titles, authors/narrators, subjects, LC and Dewey call numbers, and NLS book numbers and arranging the results in an ordered alphabetic or numeric list.
ISBN (International Standard Book Number) Omit all hyphens and spaces; there is no need to enclose your search in quotation marks. Search supports both 10 and 13 digit ISBN numbers. Examples: ISBN 0-553-37783-3 use 0553377833. ISBN 978-0-97526-433-0 use 9780975274330.
Oct 22, 2024 · This guide discusses the origins, history, and continuing research value of the Library of Congress card catalog, the predecessor to the Library's current online catalog.
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Jul 19, 2024 · The Library of Congress Classification arranges materials by subjects. The first sections of the call number represent the subject of the book. The letter-and-decimal section of the call number often represents the author's last name.