I didn't know anything about the building of the atomic bomb, but this book kept me fascinated. I really liked how the book was set up - almost as a story. It definitely caught and kept my attention. An engaging read.
The Bad: It's not bad, but I wished the photos at the beginning of the sections had been sprinkled throughout the pages as it would have kept me from flipping back and worth.
Also doesn't Robert Oppenheimer remind you of an older Sheldon Cooper?