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Spy Codes and Ciphers

- Criticism of the Works of Novelists, Poets, Playwrights, Short-Story Writers, and Other Creative Writers Who Liv

  • Format
  • Bog, ukendt format
  • Engelsk
  • 48 sider

Beskrivelse

Can flashing lights send out a secret message? Did a famous spy use sketches of butterflies to hide messages? Can a digital photo hide a secret code? For centuries, spies have used many different ways to pass secret information. Codes and ciphers keep information safe from the enemy. Author Susan K. Mitchell uncovers the secrets to the amazing world of spy codes and ciphers.

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Detaljer
  • SprogEngelsk
  • Sidetal48
  • Udgivelsesdato23-10-2013
  • ISBN139780766037090
  • Forlag Enslow Publishing
  • Nummer i serien429
  • MålgruppeFrom age 9
  • FormatUkendt
  • Udgave0
Størrelse og vægt
  • Vægt353 g
  • Dybde1,2 cm
  • coffee cup img
    10 cm
    book img
    19,8 cm
    23,1 cm

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