Codes Ciphers And Secret Writing

Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 0486320316
Size: 67.16 MB
Format: PDF, Docs
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Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space. 45 ...

Break The Code

Author: Bud Johnson
Publisher: Courier Corporation
ISBN: 0486291464
Size: 57.32 MB
Format: PDF, ePub, Docs
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Simply and clearly written book, filled with cartoons and easy-to-follow instructions, tells youngsters 8 and up how to break 6 different types of coded messages. Examples and solutions.

Worldwide Secret Code Puzzles For Kids

Author: Tony J. Tallarico
Publisher: Courier Dover Publications
ISBN: 0486798712
Size: 51.81 MB
Format: PDF, ePub, Docs
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Dozens of intriguing puzzles pose and answer interesting questions based on world history, geography, popular culture, and many other subjects. Alphabet and number codes, picture puzzles, and more, suitable for ages 8–11. Solutions.

U S A Secret Code Puzzles For Kids

Author: Tony J. Tallarico
Publisher: Courier Corporation
ISBN: 0486494594
Size: 61.73 MB
Format: PDF, ePub, Docs
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Kids love secret codes, and this book offers dozens of intriguing challenges with insights into U.S. history, geography, pop culture, and a host of other subjects.

Mysterious Messages A History Of Codes And Ciphers

Author: Gary Blackwood
Publisher: Penguin
ISBN: 9781101151013
Size: 22.90 MB
Format: PDF, ePub
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Here are the encrypted notes of Spartan warriors, the brilliant code-crackers of Elizabeth I, secret messages of the American Revolution, spy books of the Civil War, the famous Enigma Machine, and the Navajo code talkers.

Mental Magic

Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 0486146162
Size: 58.75 MB
Format: PDF, Docs
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Solutions appear at the end, with 64 illustrations in between. Author Martin Gardner has written more than 70 books on subjects from science and math to poetry and religion.

Perplexing Puzzles And Tantalizing Teasers

Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 9780486256375
Size: 55.57 MB
Format: PDF, Docs
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Combines two previously published works, resulting in ninety-three brain-teasing puzzles, riddles, and questions with an emphasis on humor.

Top Secret

Author: Paul B. Janeczko
Publisher: Candlewick Press
ISBN: 9780763629724
Size: 37.49 MB
Format: PDF, ePub, Mobi
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Presents history, trivia, and code-breaking tales in a guide book to the world of secret writing that includes examples of a variety of codes and ciphers.