This is a contextual investigation of the theory and design of Rudolph M. Schindler (1887-1953), one of the most outstanding and interesting architects of the Modern Movement in the United States. Born in 1887 in Vienna, he was trained under Otto Wagner at the Academy of Fine Arts, under Adolf Loos in the Bauschule, and under Frank Lloyd Wright working in his studio in Oak Park and Taliesin. The architectural design of Schindler not only reflects the influence of his teachers but it also has had a lasting influence on modern architecture in the United States. Although Schindler did not teach extensively at architectural schools, his articles and buildings were published throughout the United States and Europe. Schindler's personal background is unusual since, although trained in Austria, he spent the rest of his life in the United States without ever returning to visit Europe. He left Europe before World War I and maintained no direct relationship with architects and artists of the Russian Constructivism, Dutch Cubism, German Bauhaus, or Italian Futurism, and, living in the United States, he also was never confronted with the cultural policy of the German Third Reich and the notion of Entartete Kunst. Most modern architects from Austria and Germany left their countries during the time of the fascists. Schindler was in a unique position. Since he remained in the United States after World War I, he was spared the fate of his contemporaries. Throughout his life, Schindler was very much isolated from the so-called International Style, and as a result he gave his body of work a very personal interpretation.