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Contact Information

The Library of Congress encourages researchers to use local library resources first. Your local library will often be able to respond to your query more quickly than the Library of Congress, and is better able to identify and respond to your specific and ongoing needs. In many cases, you will find that the information you need is available at your local library. Once you have exhausted local and regional resources, you may direct specific enquiries to the Library of Congress by writing a letter or sending an email to one of the addresses given below. Before sending an enquiry to the Library, consult the About the Library FAQ or the Research and Reference FAQ pages; the answer to your question may be listed there. Your enquiry should explain what resources you have already consulted, and include a surface mail address. The Library refers telephone reference questions to local libraries, which in most cases will have the resources to answer those questions. Due to time and staff constraints, the Library of Congress is not able to undertake extensive research projects; a list of certified researchers who will do such projects for a fee is available from the Humanities and Social Sciences Division.

Address reference queries to: Humanities and Social Sciences Division
Library of Congress
101 Independence Ave. SE
Washington, D.C. 20540-4660
Telephone number: (202) 707-3399
Fax number: (202) 707-1957
Electronic mail reference queries: Ask a Librarian (

Please include your name, postal address, and electronic mail address in any queries, so that we may respond in the manner that is most appropriate. Your query may be among the Library's Frequently Asked Questions; we suggest you consult this resource before sending a query.

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  September 13, 2011
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