Top Secret: A Handbook of Codes, Ciphers and Secret Writing
A Nonfiction, Mathematics, Science book. Review by C.M.: "Good book with codes, ciphers, and secret writing. A lot to use for writing secret messages."
"The author's upbeat, positive tone is refreshing and his enthusiasm about his topic is contagious." — SCHOOL LIBRARY JOURNAL (starred review)Pssst! Do you know the difference between a code and a cipher? Can you tell a St. Cyr slide from a Cardano grille? Did you know that the discovery of a substitution cipher caused Mary Queen of Scots to lose her...
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- Filetype: PDF
- Pages: 144 pages
- ISBN: 9780763629724 / 763629723
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More About Top Secret: A Handbook of Codes, Ciphers and Secret Writing
Review by C.M.: "Good book with codes, ciphers, and secret writing. A lot to use for writing secret messages." I found this book very fascinating. it gave me tons of information on codes, ciphers, and stories of how this secret writing helped during times of war. im totally going to use one of those codes with my friends!! I'm glad my son brought this book home from the school library for me. It was thoughtful of him and I had an interesting, easy read.
