Pentagon Library

Update: Pentagon Library - Virtual Services only Jan. 19-22, 2021

The Pentagon Library will be providing virtual services only January 19-22, 2021. The Library will be closed to foot traffic during that time.

Virtual services will be available through Ask-A-Librarian and via email at osd.pentagonlibraryreference@mail.mil.

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The Pentagon Library serves the information needs of offices of the Secretary of Defense, Joint Chiefs of Staff, and Military Departments located at the Pentagon.

The Library traces its history back to 1800, when the War Department Library was established. In 1944, the Secretary of War issued a memorandum setting up the Pentagon Library to serve those working in the new office building. The library collection includes historical documents acquired throughout its long history.

As a business library supporting Department of Defense decision-makers and policy-makers, the print and online collections focus on:

              • Military
              • Law and Legislation
              • Government
              • History
              • International Affairs
              • Management and Leadership

Pentagon Library Hours and Locations