Making Secret Codes (Edge Books)
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Book Details
Author(s)
Jillian Gregory
Publisher
Capstone Press
ISBN / ASIN
1429645679
ISBN-13
9781429645676
Category
Juvenile Nonfiction
Marketplace
France 🇫🇷
Description
Throughout history, army generals, spies, and even scientists have guarded information through secret codes. Find out how they did it and learn how to create your own secret codes. You and your friends can share secrets that will leave everyone else scratching their heads.
