Modern Architectural Theory is the first book to provide a comprehensive survey of architectural theory, primarily in Europe and the United States, during three centuries of development. In this synthetic overview, Harry Mallgrave examines architectural discourse within its social and political context. He explores the philosophical and conceptual evolution of its ideas, discusses the relation of theory to the practice of building, and, most importantly, considers the words of the architects themselves, as they contentiously shaped Western architecture. He also examines the compelling currents of French rationalist and British empiricist thought, radical reformation of the theory during the Enlightenment, the intellectual ambitions and historicist debates of the nineteenth century, and the distinctive varieties of modern theory in the twentieth century up to the profound social upheaval of the 1960s. Modern Architectural Theory challenges many assumptions about architectural modernism and uncovers many new dimensions of the debates about modernism.