The oil industry in the United States has been the subject of innumerable histories. But books on the development of the natural gas industry and the electricity industry in the U.S. are scarce. Edison to Enron is a readable flowing history of two of America's largest and most colorful industries. It begins with the story of Samuel Insull, a poor boy from England, who started his career as Thomas Edison's right-hand man, then went on his own and became one of America's top industrialists. But...