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In observance of the Federal holiday on Monday, February 16, the Jefferson Building Great Hall and exhibitions will be open from 10 a.m. - 5 p.m. to guests with timed-entry passes. Reading rooms will be closed to researchers.
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Library of Congress

Research Centers

Use the Library

Welcome to the Library of Congress, your gateway to knowledge. Use our vast digital resources from anywhere or visit our specialized research centers in Washington, DC, to dive deeper. We are here to support your journey, no matter your level of experience. At the Library of Congress, everyone is a researcher––let's explore together!

Ask a Librarian

Have a question? Need assistance? Our librarians and program specialists are here to help you.

Location

Library of Congress
Thomas Jefferson Building
10 First Street SE
Washington, DC 20540
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Hours

All research centers are open Monday-Friday, 8:30am-5:00pm.Evening and Saturday hours vary by research center. All research centers are closed on Sundays and Federal Holidays.

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