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Автор: Geoffrey Lamb
Год: [не указано]
Издание:
[не указанo]
Страниц: [не указано]
ISBN: 0486420981
Fascinating, easy-to-understand book for would-be cryptanalysts of all ages teaches how to invent and decipher a host of codes and secret messages, including the "Moving Ahead" cipher used by Julius Caesar in his secret dispatches; dots and pinpricks, asused by the secret Rosicrucian society; and even a system used by Sherlock Holmes involving open spaces between important words. Includes stimulating brain-teasing projects that include all the codes described in the book. 14 b/w illus.
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Geoffrey LambFun With Secret Writing (Test Your Code Breaking Skills)
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