Apollo: The Race to the Moon
Out of print. Find it at the library before they sell it to buy more copies of Bill O'Reilly books.
Best book ever written about the space program, I say. Focuses not the astronauts (heroes) but on the engineers (geeks). Much of what made the movie Apollo 13 good was the material this book details.
From NASA's origins at Langley up through the fizzling out of the Apollo program, this book is incredibly interesting all the way through, and chronicles the best moments of some of the the most glamorous and accomplished nerds of all time.

