Description

Book Synopsis
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.

Over 50 Secret Codes

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£6.93

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Order before 4pm today for delivery by Fri 19 Dec 2025.

A Paperback / softback by Emily Bone, Sam Meredith

2 in stock


    View other formats and editions of Over 50 Secret Codes by Emily Bone

    Publisher: Usborne Publishing Ltd
    Publication Date: 01/03/2015
    ISBN13: 9781409584612, 978-1409584612
    ISBN10: 1409584615
    Also in:
    Books by Emily Bone

    Description

    Book Synopsis
    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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