The Emperor's Codes: The Breaking of Japan's Secret Ciphers - Smith, Michael

"The Emperor's Code" reveals how the Japanese codes--of which there were several--were broken, and readers discover in detail who were the often quirky geniuses behind the desperate effort. Illustrations.

The Emperor's Codes: The Breaking of Japan's Secret Ciphers 2007, Arcade Publishing

ISBN-13: 9781559708524

Trade paperback

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The Emperor's Codes: The Breaking of Japan's Secret Ciphers 2002, Penguin Books

ISBN-13: 9780142002339

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The Emperor's Codes: The Breaking of Japan's Secret Ciphers 2001, Arcade Publishing

ISBN-13: 9781559705684

Hardcover

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