The Library of Congress
Collectionlocal, national, international Consists of: architectural drawings, both individual drawings and complete archives; documents/correspondence; vintage and newly commissioned photographs; slides; ephemera. Strengths: American architectural drawings, photographs, and archives; international photographs and published materials. Accessible by computer and through inventories. Drawings can be reproduced (http://www.loc.gov/rr/copying.html). Institution has a conservation laboratory.
Library HoldingsCollections at the research level internationally in all areas except medicine and agriculture.