I second this recommendation. This is an excellent book about the Saturn V system. I also highly recommend Jonathan H. Ward's two excellent books, "Rocket Ranch

I second this recommendation. This is an excellent book about the Saturn V system. I also highly recommend Jonathan H. Ward's two excellent books, "Rocket Ranch: The Nuts and Bolts of the Apollo Moon Program at Kennedy Space Center" and "Countdown to a Moon Launch: Preparing Apollo for Its Historic Journey". These two books give a history aimed at the engineer, or the "rivet counters". It's full of interesting little details. For example, did you know that one of the firing rooms at the Cape was exclusively used for project management purposes? One huge wall of the room was used for maintaining a Gantt chart of the entire Apollo program all the way until Apollo Soyuz. Ward goes into excellent detail on the support facilities used for engineering tests, what the engineering tests consisted of, how they were conducted, etc. Even (sad) details on how 39A was immediately reconfigured for STS operations after Apollo Soyuz.