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Codes, Ciphers, and Secret Writing.
Codes Ciphers and Secret Writing
Author:
Experiment with cryptography—the science of secret writing. Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks...even invisible writing and sending messages through outer space. Hours of intrigue and challenge. 45 diagr... more »
Author:
Experiment with cryptography—the science of secret writing. Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks...even invisible writing and sending messages through outer space. Hours of intrigue and challenge. 45 diagr... more »
ISBN-13: 9780671652012
ISBN-10: 067165201X
Publication Date: 10/1972
Pages: 96
Rating: ?
ISBN-10: 067165201X
Publication Date: 10/1972
Pages: 96
Rating: ?
0 stars, based on 0 rating
Publisher: Simon Schuster (Juv)
Book Type: School Library Binding
Members Wishing: 0
Reviews: Amazon | Write a Review
Book Type: School Library Binding
Members Wishing: 0
Reviews: Amazon | Write a Review
