A good overview,
This review is from: Station X: The Codebreakers of Bletchley Park (Hardcover)
This is a basic primer on the story of Bletchley Park. It covers the problem that the codebreakers faced, with technical descriptions of Enigma and the process in breaking it. It examines the influence of Ultra intelligence (the information gained from breaking codes) on the outcome of the Second World War. It also provides a taste of what it was like to work at Bletchley Park by including plenty of quotes from veterans - people interested in some of the more famous personalities at BP will also enjoy these anecdotes.
So as a basic introduction to the topic of Bletchley Park this book is a very good place to start. However, for the more seasoned reader of literature on this fascinating organisation Station X lacks depth. It also lacks footnotes which is annoying.
However, for a person new to the subject this this book ticks all the boxes.