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A black and white photo of a woman kneeling in front of a large cabinet with small drawers, containing the Library's card catalog
[Jewel Mazique at card catalog, Library of Congress, Washington, D.C.]. Collins, Marjory. 1942. Library of Congress, Prints and Photographs Division.

Bite-Sized Legal Research Tutorial: Navigating the Library of Congress Catalog

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This is a guest post by Jason Zarin, a senior legal reference librarian at the Law Library of Congress. He previously authored President Biden Nominates Judge Ketanji Brown Jackson to the United States Supreme Court.

The Law Library of Congress is the largest law library in the world, with nearly 3 million volumes in its collection. Accordingly, finding the exact materials you are looking for in the library’s catalog can sometimes be a challenge.

To learn useful tips on using the catalog and requesting different types of items from the Law Library’s collection for delivery to the reading room, please watch the video tutorial “Searching the Library of Congress Catalog for Legal Materials” in advance of your visit. In this 10-minute video, you will learn how to search the catalog; limit the search to only those materials in the Law Library’s collection; and identify where the relevant materials are located.

You can watch the video here:

We hope you find this video tutorial helpful. As always, if you encounter any issues while navigating the catalog or other Library of Congress resources, please contact us through Ask A Librarian.

Subscribe to In Custodia Legis – it’s free! – to receive interesting posts drawn from the Law Library of Congress’s vast collections and our staff’s expertise in U.S., foreign, and international law.


  1. Very informative! Thanks from Florida!

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