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50 Secret Codes

Paperback • 2015 • 1. edition

50 Secret Codes

By Emily Bone

0 Ratings • 0.0 of 5

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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.

Book details

ISBN

9781409584612

Publisher

Usborne Publishing Ltd

Published year

2015

Language

Edition

1

Original title

50 Secret Codes

Format

Paperback

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Reviews · 0

0 Ratings • 0.0 of 5

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