Unsolved!

The History and Mystery of the World's Greatest Ciphers from Ancient Egypt to Online Secret Societies

By: Craig P. Bauer

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Paperback | 18 June 2019 | Edition Number 1

At a Glance

Paperback
640 Pages

Dimensions(cm)
23.4 x 15.5 x 235

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A mathematical tour of some of the greatest unsolved ciphers of all time In 1953, a man was found dead from cyanide poisoning near the Philadelphia airport with a picture of a Nazi aircraft in his wallet and an enciphered message taped to his abdomen. In 1912, a book dealer named Wilfrid Voynich came into possession of an illuminated cipher manuscript once belonging to Emperor Rudolf II, who was obsessed with alchemy and the occult. Wartime codebreakers tried'and failed'to unlock the book's secrets, and it remains an enigma to this day. In this lively and entertaining book, Craig Bauer examines these and other vexing ciphers yet to be cracked. Some may reveal the identity of a spy or serial killer, provide the location of buried treasure, or expose a secret society'while others may be elaborate hoaxes. He lays out the evidence surrounding each cipher, describes the efforts to decipher it, and invites readers to try their hand at puzzles that have stymied so many others.

Industry Reviews

"The Da Vinci Code has nothing on this exhaustive collection of cryptographs and codes-because these are real."-Discover Magazine
"A thoroughly engaging read."-Brian Clegg, Popular Science
"Unsolved! spans a huge arc of time and space, from Julius Caesar's simple substitution cipher to composer Edward Elgar's 1897 Dorabella Cipher."-Andrew Robinson, Nature
"Bauer proves an able and entertaining guide to the world of real-life ciphers, codes, and encryption. . . . Unsolved! is suited to all who enjoy the thrill of the chase."-Peter Dabbene, Foreword Reviews
"An in-depth guide to history's greatest unsolved conundrums."-BBC Focus
"I am blown away by this book. I have never read a non-fiction book before that is so thrillingly entertaining."-Adhemar Bultheel, European Mathematical Society

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