Usborne 50 Secret Codes Activity Cards
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A set of activity cards to unleash the inner code-breaker in all of us. It contains a combination of codes such as Semaphore and Morse code, as well as historical codes including the 'Grid code' used in the American Civil War and Ancient Egyptian hieroglyphics and traditional codes such as number replacement and alphabet switching codes.
52 pages, full colour illustrations throughout
Published: 2008 by Usborne Books
Dimensions: 156 x 115 x 26mm
Author: Bone, Emily
Illustrator: Meredith, Sam
Suggested Age Group: 4 and above