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http://worldcat.org/entity/work/id/495958120

Codes, ciphers and secret writing.

Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.

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http://schema.org/description

  • "Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink."
  • "Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink."@en
  • "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."

http://schema.org/genre

  • "Electronic books."
  • "Juvenile works"
  • "Juvenile works"@en
  • "Juvenile works."@en
  • "Juvenile works."

http://schema.org/name

  • "Codes, ciphers and secret writing."@en
  • "Codes, ciphers and secret writing."
  • "Codes, ciphers, and secret writing"
  • "Codes, ciphers and secret writing /"@en
  • "Codes, ciphers and secret writing /"
  • "Codes, ciphers, and secret writing."@en
  • "Codes, ciphers, and secret writing."
  • "Codes, ciphers, and secret writing /"@en
  • "Codes, ciphers, and secret writing /"