Over 50 Secret Codes's front cover

Over 50 Secret Codes

Paperback
Rs 959
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Genre:Children
Language: English
Published: March 01, 2015
Edition:4th
Paperback
ISBN13:9781409584612
ISBN10:1409584615
Pages:112
Dimensions:5.24 x 7.76 x 0.35 inches
Weight:189.94 g

About the Book

Children love to learn secret codes and write encrypted messages and this book will teach them everything they need to know, including Semaphore and Morse code, Grid code (used in the American Civil War), Egyptian hieroglyphics and traditional number replacement and alphabet switching codes.