The collection consists primarily of correspondence, photographs, project records, architectural drawings, legal documents, periodicals, news clippings and exhibition materials. The material held in this collection relates to architectural projects for Edgar J. Kaufmann by Frank Lloyd Wright, and the bulk of the material relates to Kaufmann's home, Fallingwater, at Bear Run, Pennsylvania. The collection documents the professional and personal relationship between the Kaufmann family and Wright, from the 1930s until the years preceding Wright's death in 1959.

Approximately 1,000 architectural drawings, circa 1880-1959, with related correspondence, clippings, announcements, specifications, legal documents, and photographs. Major projects represented include Auldbrass Plantation, Yemasee, S.C; the Guggenheim Museum, New York City; Fallingwater (the Edgar J. Kaufmann residence), Bear Run, Pa.; and Wright's own home and studio in Oak Park, Ill. Also, Wright's correspondence relating to exhibits and publication of his work; other professional matters; and correspondence with his son, John Lloyd Wright, 1920s-1950s; manuscript, typescript, and printed versions of articles and addresses by Wright; photographs, programs, invitations, issues of SQUARE-PAPERS, and other materials, circa 1920s-1940s, relating to Taliesin; and miscellaneous invitations, programs, announcements, honors, appreciations, memorials, clippings, and other documents relating to various aspects of Wright's career.

This collection contains over 40,000 photographs, negatives, slides and other image materials documenting nearly 500 architectural projects by American architect Frank Lloyd Wright. This collection documents Wright's built work, unbuilt projects, architectural exhibitions, and the architecture of Wright's home and studios such as Taliesin East in Wisconsin and Taliesin West in Arizona.

The collection of Frank Lloyd Wright Miscellanea is composed of transcripts of speeches, interviews, magazine and newspaper clippings by and about the world-famous architect.