{"product_id":"top-secret-a-handbook-of-codes-ciphers-and-secret-writing-9780763629724","title":"Top Secret A Handbook of Codes Ciphers and Secret","description":"\u003cb\u003eBook Synopsis\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eThe author's upbeat, positive tone is refreshing and his enthusiasm about his topic is contagious. — \u003ci\u003eSchool Library Journal\u003c\/i\u003e (starred review)\u003cbr\u003e\u003c\/b\u003e\u003cbr\u003ePssst! 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 \u003ci\u003eTop Secret\u003c\/i\u003e won’t stay a secret for long. Back matter includes suggestions for further reading, an author’s note, an answer key","brand":"Candlewick Press,U.S.","offers":[{"title":"Default Title","offer_id":49404846408023,"sku":"9780763629724","price":10.79,"currency_code":"GBP","in_stock":false}],"url":"https:\/\/bookcurl.com\/products\/top-secret-a-handbook-of-codes-ciphers-and-secret-writing-9780763629724","provider":"Book Curl","version":"1.0","type":"link"}