This practical field guide contains everything a young person needs to know about the art of concealment: making and breaking codes, mastering cipher systems, experimenting with Secret writing, and making--and breaking--their own Secret codes.
Back matter includes suggestions for further reading, an author\'s note, an answer key, and an index..
Janeczko\'s tantalizing Top Secret won\'t stay a Secret for long.
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.
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. -- School Library Journal (starred review) Pssst! Do you know the difference between a code and a cipher? Can you tell a St.
The author\'s upbeat, positive tone is refreshing and his enthusiasm about his topic is contagious.
Illustrations.
This practical field guide contains everything a young person needs to know about the art of concealment: making and breaking codes, mastering cipher systems, experimenting with Secret writing, and making--and breaking--their own Secret codes
