This book hits me on several levels. I have always been interested in WWII espionage for some reason and I’m a bookseller. So, when I found a book about WWII codes and cryptoanalysis by the son of a famous antiquarian bookseller, I just had to read it.

It was entertaining and instructive. I feel that I know a great deal more about codes and coding after reading this book.

It is well written and I would recommend it to anyone who is looking for information about codes, coding, or the SOE in WWII.

This is one of my favourite books. Many books about cryptography are about the codebreaking side of things, but Leo Marks was a codemaker during World War II. Besides the crypto side of things, he also gives a very human look at what went on behind the scenes in the unorthodox SOE.