Over 50 Secret Codes

Emily Bone

Over 50 Secret Codes
Format
Paperback
Publisher
Usborne Publishing Ltd
Country
United Kingdom
Published
27 April 2015
Pages
112
ISBN
9781409584612

Over 50 Secret Codes

Emily Bone

Code-cracking skills can be put to the test in this entertaining book which teaches children how to write and decode secret messages. Includes Semaphore and Morse code, the Grid code used in the American Civil War, Egyptian hieroglyphics, number replacement and alphabet switching codes and more. Each page features a different type of code, with an explanation of how it works and a practice code to crack. All answers are available at the back of the book.

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