Viennese architect Adolf Loos was one of the most important pioneers of the European Modern Movement. Born in 1870, he was an early opponent of the decorative trends of Art Nouveau, believing instead that architecture devoid of ornament represented pure and lucid thought. His rationalist design theories were put into practice in the Karntner Bar, Vienna (1907), Steiner House, Vienna (1920), and Villa Muller, Prague (1930). Surprisingly, there is no other monograph on Loos in English currently available. Adolf Loos joins Adalberto Libera and Albert Kahn in Princeton Architectural Press's historical monographs series and presents this great modernist's complete works through numerous illustrations.