The Library of Congress in Washington DC is essentially both the national library of the U.S. and the country's oldest federal cultural institution. Though it consists of only three buildings, it is the largest library in the world for shelf space and number of volumes.

Since 1962, the Library of Congress has maintained offices abroad to acquire, catalog and preserve library and research materials from countries where such materials are essentially unavailable through conventional acquisitions methods.

Approximately half of the Library’s book and serial collections are in languages other than English. The collections contain materials in some 470 languages.

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