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14 million records
- 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.
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Sep 1, 2021 · The Library of Congress announced today its third release of records in its online catalog for free bulk download for research and discovery. The release supports the Library’s effort to continuously expand open access to its vast collections.
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.
- What We Collect
- Special Collections and Finding Aids
- Databases and Other Catalogs
Although the Library of Congress is the largest library in the world, it does not have a copy of every item ever published, nor does it retain copies of every item submitted through the acquisition sources listed above for its research collection. The Library's permanent collections are shaped by Collections Policy Statements, with technical agricu...
In addition, many items from the Library's special collections are not represented by individual entries in the Library's Catalog. These materials are instead described in aggregated records. Catalog records for many archival collections are also linked to more detailed Finding Aids. Specialized online catalogs provide access to prints and photogra...
Databases, ejournals, and ebooks (including items found in fee-based online services) are generally accessible onsite, in one of the Library's reading rooms, often through the Library's E-Resources Online Catalog. Records for works registered with the Copyright Office after 1978 are searchable in the Copyright Catalog. Card entries for some items c...
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. Standard numbers can help you retrieve specific records from the LC Catalog.
Library of Congress collections contain over 175 million books, periodicals, manuscripts, maps, music, recordings, images, and electronic resources. The LC Catalog contains over 20 million records describing these collections.
Explore the Library's digital collections. Year 2022 at a Glance . In fiscal year 2022 (October 2021 to September 2022), the Library of Congress ... Responded to more than 481,000 reference requests from Congress, the public and other federal agencies, including the direct use of Congressional Research Service reports;
Types of Numbers Found in LC Catalog Records. Numbers found in LC Catalog records include: Identifiers Assigned by the Library of Congress: LCCNs (Library of Congress Control Numbers) and LCCN Permalinks, LC call numbers (classified and shelf location numbers), LC Handles (for digital content)
