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Codes, Ciphers and Secret Writing

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Release : 1984-01-01
Genre : Juvenile Nonfiction
Kind : eBook
Book Rating : 618/5 ( reviews)

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Book Synopsis Codes, Ciphers and Secret Writing by : Martin Gardner

Download or read book Codes, Ciphers and Secret Writing written by Martin Gardner. This book was released on 1984-01-01. Available in PDF, EPUB and Kindle. Book excerpt: Explains various methods used in cryptography and presents examples to help readers in breaking secret codes

Codes, Ciphers and Spies

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Release : 2016-03-31
Genre : Science
Kind : eBook
Book Rating : 156/5 ( reviews)

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Book Synopsis Codes, Ciphers and Spies by : John F. Dooley

Download or read book Codes, Ciphers and Spies written by John F. Dooley. This book was released on 2016-03-31. Available in PDF, EPUB and Kindle. Book excerpt: When the United States declared war on Germany in April 1917, it was woefully unprepared to wage a modern war. Whereas their European counterparts already had three years of experience in using code and cipher systems in the war, American cryptologists had to help in the building of a military intelligence unit from scratch. This book relates the personal experiences of one such character, providing a uniquely American perspective on the Great War. It is a story of spies, coded letters, plots to blow up ships and munitions plants, secret inks, arms smuggling, treason, and desperate battlefield messages. Yet it all begins with a college English professor and Chaucer scholar named John Mathews Manly. In 1927, John Manly wrote a series of articles on his service in the Code and Cipher Section (MI-8) of the U.S. Army’s Military Intelligence Division (MID) during World War I. Published here for the first time, enhanced with references and annotations for additional context, these articles form the basis of an exciting exploration of American military intelligence and counter-espionage in 1917-1918. Illustrating the thoughts of prisoners of war, draftees, German spies, and ordinary Americans with secrets to hide, the messages deciphered by Manly provide a fascinating insight into the state of mind of a nation at war.

Spy Codes and Ciphers

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Author :
Release : 2012-01-01
Genre : Juvenile Nonfiction
Kind : eBook
Book Rating : 096/5 ( reviews)

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Book Synopsis Spy Codes and Ciphers by : Susan K. Mitchell

Download or read book Spy Codes and Ciphers written by Susan K. Mitchell. This book was released on 2012-01-01. Available in PDF, EPUB and Kindle. Book excerpt: Can flashing lights send out a secret message? Did a famous spy use sketches of butterflies to hide messages? Can a digital photo hide a secret code? For centuries, spies have used many different ways to pass secret information. Codes and ciphers keep information safe from the enemy. Author Susan K. Mitchell uncovers the secrets to the amazing world of spy codes and ciphers.

Top Secret

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Author :
Release : 2006-04-11
Genre : Juvenile Nonfiction
Kind : eBook
Book Rating : 724/5 ( reviews)

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Book Synopsis Top Secret by : Paul B. Janeczko

Download or read book Top Secret written by Paul B. Janeczko. This book was released on 2006-04-11. Available in PDF, EPUB and Kindle. Book excerpt: 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.

The Spy's Guide to Secret Codes and Ciphers

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Author :
Release : 2002
Genre : Juvenile Nonfiction
Kind : eBook
Book Rating : 406/5 ( reviews)

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Book Synopsis The Spy's Guide to Secret Codes and Ciphers by : Jim Wiese

Download or read book The Spy's Guide to Secret Codes and Ciphers written by Jim Wiese. This book was released on 2002. Available in PDF, EPUB and Kindle. Book excerpt: Secret Codes and Ciphers.

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