Codes, Ciphers and Secret Writing »

Authors: Martin Gardner
ISBN-13: 9780486247618, ISBN-10: 0486247619
Format: Paperback
Publisher: Dover Publications
Date Published: October 1984
Edition: (Non-applicable)

Author Biography: Martin Gardner

Book Synopsis

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 space. 45 diagrams.