This 1998 offering is a very short biography of J. Robert Oppenheimer, as well as information about how the atom bomb worked. It also looked at some of the problems workers with the Manhattan Project faced, includes a few diagrams, and briefly notes the powerful enemy Oppenheimer made in Lewis Strauss. There's also a timeline of the nuclear age, up until the 1990s.
Although it's a quick read, I did find a glaring historical error. The author describes J. Edgar Hoover as a "drag queen" -- an urban myth that's been thoroughly debunked. It was considered a myth in 1998, but yet here it is. It makes me wonder what other errors were included that I missed.