xxiii, 355 pages. Critical biography of one of the twentieth centuries most illustrious architects. CONTENTS: List of buildings and projects. Aachen: youth in imperial Germany, 1886-1905. Berlin: problems of a new century, 1905-18. Europe out of the ashes: response to the modernist challenge, 1919-25. Weimar at the flood, 1925-29. Depression, collectivization, and the crisis of art, 1929-36. Departure and flight, 1936-38. Revival: modernism without utopia, 1938-49. America: the triumph of steel and glass, 1949-58. Recessional, 1958-69.