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Searches for Library of Congress Control Numbers (LCCN), International Standard Book Numbers (ISBN), and International Standard Serial Numbers (ISSN). Numbers must be entered in exact order beginning with the first character.
The Library of Congress Online Catalog contains approximately 14 million records representing books, serials, computer files, manuscripts, cartographic materials, music, sound recordings, and visual materials. The Online Catalog also displays searching aids for users, such as cross-references and scope notes.
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. The collections include books, sound recordings, motion pictures, photographs, maps, and manuscripts.
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."
Discover the Library of Congress. 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.
Browses LC call numbers, entered in exact order beginning with the first element. Call numbers include both LC class numbers and other Library shelving numbers. Enter either a complete call number or the first part of the number: TX652.5 (include period) Enter spacing and punctuation accurately: TX725.M35 C56 (include period and space)
Advanced Search provides a guided search template that helps you combine keywords found anywhere in the record or in specific record areas (titles, names, subjects, notes, identifiers, publication information, etc.).
