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  1. 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.

    • Digital Collections

      This collection contains cultural heritage materials...

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  2. 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.

  3. 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.

  4. 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.

  5. Narrow search by limiting results to a specific language, publisher name and/or date range. Search articles, ebooks and other eresources available at the Library of Congress using Primo , the Library's web scale discovery service.

  6. 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.).

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  8. Jan 5, 2022 · There are several approaches and strategies to employ when doing online research using the Library of Congress website. Starting with the single search box, found on the Library of Congress website, you will discover digital primary sources as well as research tools and guides created by librarians.

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