The Kids' Book of Secret Codes, Signals and Ciphers
7.95
USD
Book Details
Author(s)
E. A. Grant
Publisher
Running Pr Book Pub (J)
ISBN / ASIN
0894717812
ISBN-13
9780894717819
Sales Rank
#3,425,013
Category
Juvenile Nonfiction
Marketplace
United States 🇺🇸
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Description
Discusses the history and different varieties of codes and ciphers, describing code machines, signals, sign language, picture languages, and hidden messages.
