4 of 4 people found the following review helpful
Between Silk and Cyanide by Leo Marks,
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This review is from: Between Silk and Cyanide (Paperback)
This is a well written and absorbing book about the author's work in the war as a coder. It's very informative and intellectually satisfying, whilst also engaging the reader on an emotional level - making them feel the urgent need to safeguard the lives of agents (mainly resistance workers) by making better and better codes and minimising the risk-heavy need for them to retransmit previous "indecipherable" messages.
It's the tale of someone, physically safe himself, who is always keenly aware of the dangers being run by the field agents whose messages he is reading, who understands that each of their prospects for surviving the war are desperately slim, and who is constantly and innovatively striving to prolong their lives.
I couldn't put this book down and would recommend it to anyone with an interest in history or in puzzles.