Former President Herbert Hoover wrote about World War II and the Cold War in what has been called a magnum opus, published 50 years after he completed it. In the book he sharply criticizes the wartime decisions of Presidents Roosevelt and Truman and analyzes the consequences. The presidential writings were edited by Hoover expert George Nash, who discussed them with presidential historian Richard Norton Smith, the author of An Uncommon Man: The Triumph of Herbert Hoover.