Roy Lubove presents the first detailed study of the Regional Planning Association of America, whose organization in 1923 signified a sharp break with traditional housing and planning in the United States. Composed of a small number of talented technicians and social critics, the RPAA was distinctive for its uncompromising criticism of small-scale speculative housing development and planning efforts that failed to relate physical and social change within a regional framework. Lubove's study is based in part upon interviews and materials supplied by some of the founding members of the RPAA.