Fun with Secret Writing (Dover Children's Activity Books)
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Book Details
Author(s)Geoffrey Lamb
PublisherDover Publications
ISBN / ASIN0486420981
ISBN-139780486420981
Sales Rank3,668,773
CategoryGames
MarketplaceUnited States 🇺🇸
Description ▲
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; dots and pinpricks, as used by the secret Rosicrucian society; and even a system used by Sherlock Holmes. 14 black-and-white illustrations.
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