Absolutely fascinating book. The subtitle is: "FDR, Detroit, and an epic quest to arm an America at war." That really sums us what this book is about. It focuses on how Detroit's automotive companies shifted production from cars to planes and all manner of war production during WWII. A large part of the book is devoted to Ford Motor Company, with special attention given to the role Edsel Ford played in the war effort and converting Ford's plants to help with the war effort. The book is very readable, entertaining, and well researched.