Codes, Ciphers and 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 space. 45 diagrams. Read More

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. Read Less

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  	This is a digital edition of this title. Buy eBook Lifetime Access: $5.95 Title: Codes, Ciphers and Secret Writing by Martin Gardner Publisher: Dover Publications Print ISBN: 9780486247618, 0486247619 eText ISBN: 9780486320311 Edition: 1984 Format: EPUB eBook	$5.95 Buy eBook This is a digital eBook Nothing will be shipped to you Works with web browsers and the VitalSource app on all Windows, Mac, Chromebook, Kindle Fire, iOS, and Android devices Most eBooks are returnable within 14 days of purchase Questions? See our eBook FAQ