MauryKlein is renowned as one of the finest historians of American business and economy. He is the author of many books, including A Call to Arms: Mobilizing America for World War II; The Power Makers: Steam, Electricity, and the Men Who Invented Modern America; and Rainbow's End: The Crash of 1929. He is Professor Emeritus of History at the University of Rhode Island. Klein lives in Saunderstown, Rhode Island.