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Break the Code: Cryptography for Beginners

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Break the Code: Cryptography for Beginners - Johnson, Bud
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Simply and clearly written book, filled with cartoons and easy-to-follow instructions, tells youngsters 8 and up how to break six different types of coded messages. Examples and solutions.

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Break the Code: Cryptography for Beginners 2013, Dover Publications, Mineola, NY

ISBN-13: 9780486291468

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