Books Details
Author : Paul B. Janeczko Pages : 144 pages Publisher : Candlewick Press Language :
en-US ISBN-10 : 0763629723 ISBN-13 : 9780763629724
Books Descriptions
"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.
