Codes, ciphers, and secret writing
(2013)
Nonfiction
eBook
Details
PUBLISHED
[United States] : Dover Publications : Made available through hoopla, 2013
DESCRIPTION
1 online resource
ISBN/ISSN
9780486320311 (electronic bk.) MWT11607232, 0486320316 (electronic bk.) 11607232
LANGUAGE
English
NOTES
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
Mode of access: World Wide Web