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 | Unavailable |
| ISBN 13 | 9780763629724 |
| ISBN 10 | 0763629723 |
| Title | Top Secret |
| Author | Paul B Janeczko |
| Condition | Unavailable |
| Binding Type | Paperback |
| Publisher | Candlewick Press,U.S. |
| Year published | 2006-04-11 |
| Number of pages | 144 |
| Cover note | Book picture is for illustrative purposes only, actual binding, cover or edition may vary. |
| Note | Unavailable |