A curious book. Quite unlike the western standards, which feels fresh. The description had me expecting more of a traditional spy thriller, but instead I was served some kind of psychological study to a mind of a codebreaker.

That is all fine and interesting, but the author did take his time approaching the subject. Was all that prefacing and background necessary? I suppose the author thinks it was, as he went through all that, but I was left with a feeling it would be possible to condense this book a bit.

But the best part, the psychology of codebreaking, that sure was interesting.