Many of the fascinating happenings in his life are told in this extensive biography of the energetic and physically stunted genius who came from Germany to be one of America's most prolific and well paid inventors. Born in Breslau in 1865, Steinmetz spent a spoiled childhood but his scientific capacities soon took the lead, and his studies at the University of Breslau resulted in his investigation of aluminum as a new and useful metal, and in a professorship of mathematics. Though Steinmetz left Germany for political reasons it was for scientific ones that he went to work at the laboratory of Eickenmeyer and Osterheld in New York to improve electrical devices, and later switched to General Motors. In Schenectady he spent the rest of his life working on the transformer, the street lamp and a host of other projects that contributed to our technical progress and endeared himself to all those who knew him. An interesting character study.