This has to be the definitive book on all things to do with Alan Turing's work and legacy. I looked at the contents and saw many aspects of Turing's work that I would like to know more about.....it was all present in this book. Everything I could think of connected to Alan Turing was there plus lots of things that I didn't know about..........a superb effort and magnificent compilation.
I had to return this book simply because of its size. I give it 5 stars for the quality, content and massive research that went into it. Just too much for me so bought an alternative book on the subject.