Step one: Enter search terms. Type one or more search words in the Search box. Step two (optional): Select a quick limit from the drop down menu. This allows you to restrict your search to a particular segment of the NLS collection: NLS and Locally Produced Network Books. NLS Sound Recordings; NLS Books–Last 5 Years
To enter a Browse search: Select a Browse search type from the drop-down menu options. Enter one or more search words or phrases in the Browse search box. Depending on the Browse option you select, your search terms may need to be entered in exact order, beginning with the left-most word.
Basic E-Journals Search (Library of Congress Electronic Resources Online Catalog). Electronic versions of journals, newspapers and other publications.
Toggle open context-sensitive search tips or click Search/Browse Help from either the Menu at the top of your screen or the Help link at the bottom of your screen. Select the number of items you want to display in your search results Titles List. You can increase the default of 25 results to 50, 75, or 100.
Online Catalog. 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.
Text-Only Search (Quick) What it does: offers Quick, Single-Term and Multiple-Term Search Interfaces; offers a Kids Zone Catalog for preschoolers through young adults; searches specific author, title, subject, and keywords – learn more in the Overview of Text-Only Interface
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Information that will be required to configure your Z39.50 client to search the LC server directly is provided in LC Z39.50 Server Configuration Guidelines. It is also possible to access the LC server by using the appropriate search forms listed under "Search Library of Congress Catalog" above.
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.
- Digital Object Identifiers
International Standard Book Numbers (ISBN opens in a new window) are internationally-recognized product identifiers used by publishers, libraries, internet retailers, and the book trade to identify and manage text-based monographs. These numbers incorporate information identifying the ISBN registrant as well as the specific title, edition, and format of a publication. Until 2006, ISBNs were 10 digits long; in January 2007, these numbers expanded to 13 digits - calculated using a specific math...
International Standard Serial Numbers (ISSN) are internationally-recognized identifiers used by publishers, libraries, internet retailers, and the journal and newspaper trade to identify and manage serials. These numbers are 8 digits long (four number, hyphen, four numbers) and are assigned by a network of nearly 90 ISSN centers worldwide coordinated by the ISSN International Center opens in a new window located in Paris (the US ISSN Center is part of the Library of Congress). In 2007, the IS...
International Standard Music Numbers (ISMN opens in a new window) are unique internationally-recognized identifiers used by publishers, libraries, internet retailers, and the music trade to identify and manage notated music. Until 2007, ISMNs were 10 digits long, beginning with the letter M followed by nine digits. In January 2008, the letter M was dropped and ISMN were expanded to 13 digits - calculated using a specific mathematical formula compatible with the 13-digit number used in barcode...
The Dewey Decimal Classification Number (DDC opens in a new window) is a general knowledge organization tool created by Melvil Dewey in 1873. Continuously revised, DDC is currently published by OCLC opens in a new window.The Library of Congress assigns Dewey numbers to nearly all US trade imprints, including all titles cataloged in the Cataloging in Publication (CIP) program, and to many books in English, French, German, Italian, Spanish, and Portuguese. While many LC Catalog book records con...
The Superintendent of Documents Classification (SuDoc ) is a classification system developed at the turn of the 20th century by the Superintendent of Documents, US Government Printing Office (GPO), to help organize its large and rapidly growing mass of federal government publications. With the constant creation and relocation of federal agencies and bureaus, GPO works closely with US government agencies to ensure that SuDoc classification numbers remain current.SuDoc numbers included LC Catal...
Digital Object Identifiers (DOIs ) are unique, persistent identifiers that help you identify and locate content on the web. Assigned and managed by registration agencies of the International DOI Foundation) . DOIs use the same underlying resolution framework as LC handles. Each DOI is made up of a prefix (starting with 10. plus four digits that specify the registering organization), followed by a forward slash and an alphanumeric suffix that identifes the content object. DOI suffixes can inco...