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Break the Code: Cryptography for Beginners by Bud Johnson (Paperback, 2013)
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Veteran cryptographer's simply and clearly written how-to book provides youngsters 8 and up with all the information needed to decipher 56 secret messages. Funny cartoons and easy-to-follow instructions explain how to break six different codes, including simple letter grouping, reverse trail, shift code, key word code, date shift code and twisted path code. Examples and solutions. Dover Original.
- Buy it nowBreak the Code: Cryptography for Beginners (Dover Children's Activity Books)
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About this product
Product Information
No, it's not a message from outer space! Just read it backwards, starting from the bottom line, to discover what this specially coded message says. (The extra letter X at the beginning was thrown in just to make the message a bit more mysterious.) Codes have been used for centuries. Now, with the help of this entertaining book, you, too, will be able to decipher dozens of secret messages. Veteran cryptographer Bud Johnson not only describes the different techniques used in secret writing but also explains - clearly and simply - how to make and break six different kinds of codes: simple letter grouping, reverse trail, shift code, key word code, date shift code, and twisted path code. You'll even learn techniques for creating your own confidential messages! Cartoons by illustrator Larry Daste accompany the 51 practice messages, along with easy-to-follow instructions explaining each type of code and how to use it. There's also a glossary defining common terms used by cryptographers, a sheet of reproducible graph paper for writing out messages, and a page of ready-made alphabets for shift and key word codes. And if all those funny drawings and helpful guidelines aren't enough to help you decode our secret messages, don't worry. Solutions are included at the end of the book. AGES: 8 to 18Product Identifiers
PublisherDover Publications Inc.
ISBN-139780486291468
eBay Product ID (ePID)88279229
Product Key Features
Book TitleBreak the Code: Cryptography for Beginners
AuthorBud Johnson
FormatPaperback
LanguageEnglish
Publication Year2013
GenreChildren & Young Adults
Number of Pages84 Pages
Dimensions
Item Height279mm
Item Width210mm
Additional Product Features
Title_AuthorBud Johnson
Series TitleDover Children's Activity Books
Country/Region of ManufactureUnited States
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Ratings and reviews
Most relevant reviews
- 10 Jan, 2018
Outstanding book everyone will love
This is a compelling read. Everyone will enjoy it. Cannot wait to read any follow up book. Thanks so very much 10,000% perfect.Verified purchase: YesCondition: New
- 05 Jul, 2017
Children's book
Not clear it was for childrenVerified purchase: YesCondition: New
- 04 May, 2024
Good quality item, well packaged and quickly dispatched and delivered.
Good quality item, well packaged and quickly dispatched and delivered.Verified purchase: YesCondition: Pre-owned
