This material is drawn primarily from a 1961 program at Columbia University's School of Architecture in celebration of the four great founders of contemporary architecture: Charles-Edouard Le Corbusier, Walter Gropius, Ludwig Mies van der Rohe, and Frank Lloyd Wright. It includes addresses by Le Corbusier and Gropius as well as an interview with Mies van de Rohe. Discussion focuses upon philosophies of design, aspects of their various architectural projects, and the juncture of architecture and city planning. Also included are earlier taped conversations with Walter Gropius and Frank Lloyd Wright.