Rudolf Frankel was among the leaders of the pre-war avant-garde in Berlin. He later emigrated to Bucharest, London and the United States, where he taught at Miami University, Ohio. A founding member of the Circle Group of Architects in 1943, Rudolf Frankel was admitted to the Royal Institute of British Architects in 1947 and a year later elected to become a Fellow of the RIBA. This is the first comprehensive monograph devoted to Frankel's work.