Top Secret
Top Secret
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Top Secret by Paul B Janeczko
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.
| SKU | Non disponible |
| ISBN 13 | 9780763629724 |
| ISBN 10 | 0763629723 |
| Titre | Top Secret |
| Auteur | Paul B Janeczko |
| État | Non disponible |
| Type de reliure | Paperback |
| Éditeur | Candlewick Press,U.S. |
| Année de publication | 2006-04-11 |
| Nombre de pages | 144 |
| Note de couverture | La photo du livre est présentée à titre d'illustration uniquement. La reliure, la couverture ou l'édition réelle peuvent varier. |
| Note | Non disponible |