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.
£5.99
In stock (can be backordered)
Author Emily Bone Published by Usborne Publishing Ltd. ISBN 9781409584612 EAN 9781409584612 Bic Code YNVP Cover Paperback
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