Cover of Cracking Codes

Cracking Codes

by Denise Sutherland, Diana Kimpton, Mark Koltko-Rivera, Britannica Educational Publishing Staff

158 pages2010ScholasticISBN 9781407114569
ScienceScience Fiction
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About this book

First the ancient Greeks hid messages under their hair. Then Mary Queen of Scots completely lost her head because of a cracked code. Now computers create codes no human can crack. This is the ultimate guide to unlocking the secret language of spies.

Publication Details

Publisher
Scholastic
Published
2010
Pages
158
ISBN
9781407114569
Language
en

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