Codes Ciphers And Secret Writing

Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 0486320316
Size: 41.37 MB
Format: PDF, ePub
View: 1929
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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 ...

Codes Ciphers And Secret Writing

Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 9780486247618
Size: 61.56 MB
Format: PDF, Mobi
View: 5599
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Explains various methods used in cryptography and presents examples to help readers in breaking secret codes

Break The Code

Author: Bud Johnson
Publisher: Courier Corporation
ISBN: 0486291464
Size: 18.21 MB
Format: PDF, Mobi
View: 1322
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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.

Mental Magic

Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 0486146162
Size: 79.94 MB
Format: PDF, ePub
View: 5289
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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.

U S A Secret Code Puzzles For Kids

Author: Tony J. Tallarico
Publisher: Courier Corporation
ISBN: 0486494594
Size: 15.40 MB
Format: PDF, Kindle
View: 467
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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.

Perplexing Puzzles And Tantalizing Teasers

Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 9780486256375
Size: 49.99 MB
Format: PDF, ePub
View: 2365
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Combines two previously published works, resulting in ninety-three brain-teasing puzzles, riddles, and questions with an emphasis on humor.

Cryptanalysis

Author: Helen F. Gaines
Publisher: Courier Corporation
ISBN: 0486800598
Size: 77.14 MB
Format: PDF, Kindle
View: 3717
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Thorough, systematic introduction to serious cryptography, especially strong in modern forms of cipher solution used by experts. Simple and advanced methods. 166 specimens to solve — with solutions.

Mysterious Messages

Author: Gary L. Blackwood
Publisher: Dutton Juvenile
ISBN: 9780525479604
Size: 69.76 MB
Format: PDF, ePub, Docs
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From the ingenious ciphers of Italian princes to the spy books of the Civil War to the advanced techniques of the CIA, codes and code breaking have played important roles throughout history.

Codes Ciphers And Secret Languages

Author: Fred B. Wrixon
Publisher: Random House Value Publishing
ISBN:
Size: 27.16 MB
Format: PDF, Kindle
View: 1371
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Presents Indian sign language, Morse code, Jefferson's cipher wheel and other European and American codes and ciphers from ancient times to the present, in their historical context

Top Secret

Author: Paul B. Janeczko
Publisher: Candlewick Press
ISBN: 9780763629724
Size: 59.66 MB
Format: PDF, ePub, Docs
View: 4125
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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.