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Blue Vase Books
Top Secret: A Handbook of Codes, Ciphers and Secret Writing
Top Secret: A Handbook of Codes, Ciphers and Secret Writing
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Condition: Good
paperback
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"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.
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.
ISBN: 0763629723
SKU:31UE34000JYW_ns
Note on Condition
Note on Condition
Most of the items in our store are used. The items condition is indicated at the top of the product page. Please refer to the following condition notes:
- Used - Good: The item shows wear from consistent use, but it remains in good condition and works perfectly. All pages and cover are intact (including the dust cover, if applicable). Spine may show signs of wear. Pages may include limited notes and highlighting. May NOT include discs, access code or other supplemental materials.
- Used- Acceptable: The item is very worn but continues to work perfectly. Signs of wear can include aestetic issues such as scratches, dents, worn and creased covers, folded page corners, and minor liquid stains. All pages and the cover are intact, but the dust cover may be missing. Pages may include moderate to heavy amount of notes and highlighting, but the text is not obscured or unreadable. Page edges may have foxing (age related spots and browning). May NOT include discs, access code or other supplemental materials.
- Used-Ex-Library (Good/Acceptable): Former library book with the usual stamps, stickers, and labels. See Good/Acceptable notes for more detail.
- Used- Very Good: Book has little sign of wear or use
- New- Brand new, unread book
Shipping & Local Pick Up
Shipping & Local Pick Up
Shipping: Most orders are shipped within 24 hours. Please allow 4-14 days after the item has shipped for delivery. Faster shipping is available for purchase at checkout.
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