I agree with the other reviewers who considered this book superficial. It only touches upon the interesting experimental aspects of the subject and provides way too much irrelevant padding. Whilst I appreciate it may make for more easier reading to provide background material on the personalities and have enjoyed this when done in balance by other authors I feel this one simply neglects the main theme in favour of irrelevances - why include a paragraph quoting Hitler and why the lengthy discussion of Bomber Harris and air raids on Germany - the obvious point about the influence of radio/radar could have been made much more succinctly. All in all lightweight and trivial with glaring omissions in it's central subject.