{"product_id":"top-secret-a-handbook-of-codes","title":"TOP SECRET: A HANDBOOK OF CODES,","description":"\"The author's upbeat, positive tone is refreshing and his enthusiasm about his topic is contagious.\" — School Library Journal (starred review)\n\nPssst! 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.\u003cbr\u003eASIN: 0763629723\u003cbr\u003eVSKU: 31UE34000JYW_ns\u003cbr\u003eCondition: Good\u003cbr\u003eAuthor\/Artist:Janeczko, Paul B.|LaReau, Jenna\u003cbr\u003eBinding: Paperback\u003cbr\u003e\u003cb\u003eNote:\u003c\/b\u003e Any images shown are stock photographs and product may differ from what is shown.  \u003cbr\u003e\u003cb\u003eCondition Notes\u003c\/b\u003e: 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.  \u003cbr\u003e","brand":"Blue Vase Books","offers":[{"title":"Default Title","offer_id":43419768946749,"sku":"31UE34000JYW_ns","price":5.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/4225\/9261\/files\/0763629723-0.jpg?v=1785706511","url":"https:\/\/www.bluevasebooks.com\/products\/top-secret-a-handbook-of-codes","provider":"Blue Vase Books","version":"1.0","type":"link"}