Top Secret: A Handbook of Codes, Ciphers, and Secret Writing

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This practical field guide contains everything a young person needs to know about the art of concealment: making and breaking codes, mastering cipher systems, experimenting with secret writing, and making--and breaking--their own secret codes. Illustrations.

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Tamera N

Dec 28, 2018

Nice Resource

Book arrived on time and in advertised condition. Perfect tool for escape room planning and props.

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