Ciphers and Codes

Ciphers and Codes

3.33 (6 ratings by Goodreads)
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List price: US$30.01

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Description

"Learn about ciphers and codes--the tools used to keep a message secret. See how ciphers were used by the patriots in the American Revolutionary War. Find out how to make your own cipher. In this book, you will discover how flag signals and smoke signals work, see how computers use ciphers and codes today, find out how you can break a cipher without a key."show more

Product details

  • 12-17
  • Hardback
  • 200 x 275 x 10mm | 386g
  • Heinemann Educational Books
  • United States
  • English
  • Illustrations, unspecified
  • 1588104842
  • 9781588104847

Rating details

6 ratings
3.33 out of 5 stars
5 17% (1)
4 17% (1)
3 50% (3)
2 17% (1)
1 0% (0)
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