Over 50 Secret Codes

Over 50 Secret Codes

Over 50 Secret CodesRead More →

SUGGESTED AGE: 7+ years

DESCRIPTION FROM THE PUBLISHER: 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.

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