This handsomely designed book brings together for the first time the outstanding work of four Swiss engineers and their teachers who form the most impressive group of structural artists in the twentieth century: Wilhelm Ritter (1847?1906), Robert Maillart (1872?1940), Othmar Ammann (1879?1965), Pierre Lardy (1902?1956), Heinz Isler (b. 1926), and Christian Menn (b. 1927).