Top Secret: A Handbook of Codes, Ciphers and Secret Writing

by Janeczko, Paul B.
4.6 out of 5 Customer Rating
ISBN: 9780763629724
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Overview

"The author's upbeat, positive tone is refreshing and his enthusiasm about his topic is contagious." -- SCHOOL LIBRARY JOURNAL (starred review)

Pssst Do you know the difference between a code and a cipher? Can you tell a St. Cyr slide from a Cardano grille? Did you know that the discovery of a substitution cipher caused Mary Queen of Scots to lose her head? Don't look now, but packed into this practical field guide is everything a young person needs to know about the art of concealment - making and breaking codes, mastering cipher systems, and experimenting with secret writing. Offering plenty of hands-on practice sessions, tips for creating a code-making kit, sidebars on secret codes in history, and an amusing pair of spies to illustrate techniques, Paul B. Janeczko's tantalizing TOP SECRET won't stay a secret for long.
Back matter includes suggestions for further reading, an author's note, an answer key, and an index.

  • Format: Trade Paperback
  • Author: Janeczko, Paul B.
  • ISBN: 9780763629724
  • Condition: Used
  • Dimensions: 8.90 x 0.40
  • Number Of Pages: 136
  • Publication Year: 2006

Customer Reviews