Book: Codes, Ciphers And Secret Writing 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 diagrams.
Details of Book: Codes, Ciphers And Secret Writing Book: Codes, Ciphers And Secret Writing
Author: Martin Gardner
ISBN: 0486247619
ISBN-13: 9780486247618
, 978-0486247618
Binding: Paperback
Publishing Date: 1984/10/01
Publisher: Dover Publications
Number of Pages: 96
Language: English