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Title: Joe's War: My Father Decoded, Author: Annette Kobak
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Joe's War: My Father Decoded
by Annette Kobak
Paperback $25.00
Title: The Second Voynich Manuscript, Author: Matti Charlton
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The Second Voynich Manuscript
by Matti Charlton, William Newbold, William Friedman
Paperback $25.00
Title: Crypto: How the Code Rebels Beat the Government--Saving Privacy in the Digital Age, Author: Steven Levy
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Crypto: How the Code Rebels…
by Steven Levy
Paperback $25.00
Title: Crypto Dictionary: 500 Tasty Tidbits for the Curious Cryptographer, Author: Jean-Philippe Aumasson
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Crypto Dictionary: 500 Tasty…
by Jean-Philippe Aumasson
Paperback $24.99
Title: X, Y & Z: The Real Story of How Enigma Was Broken, Author: Dermot Turing
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X, Y & Z: The Real Story of…
by Dermot Turing
Paperback $24.99
Title: The Undecidable: Basic Papers on Undecidable Propositions, Unsolvable Problems and Computable Functions, Author: Martin Davis
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The Undecidable: Basic Papers…
by Martin Davis (Editor)
Explore Series
Paperback $24.95
Title: OPAQUE: Secure Passwords Never Leave Your Device, Author: Tony Gaitatzis
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OPAQUE: Secure Passwords Never…
by Tony Gaitatzis
Paperback $24.47
Title: The Secret Lives of Codebreakers: The Men and Women Who Cracked the Enigma Code at Bletchley Park, Author: Sinclair McKay
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The Secret Lives of…
by Sinclair McKay
Paperback $24.00
Title: Enigma: The Battle for the Code, Author: Hugh Sebag-Montefiore
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Enigma: The Battle for the…
by Hugh Sebag-Montefiore
Paperback $23.95
Title: Body of Secrets: Anatomy of the Ultra-Secret National Security Agency from the Cold War through the Dawn of a New Century, Author: James Bamford
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Body of Secrets: Anatomy of…
by James Bamford
Paperback $23.00
Title: Francis Bacon Tudor Equals William Shakespeare, Author: Andrew Stevens Peck
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Francis Bacon Tudor Equals…
by Andrew Stevens Peck
Paperback $23.00
Title: The Secret War: Spies, Ciphers, and Guerrillas, 1939-1945, Author: Max Hastings
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The Secret War: Spies, Ciphers…
by Max Hastings
Paperback $22.99
Title: The Fabulous Fibonacci Numbers, Author: Alfred S. Posamentier
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The Fabulous Fibonacci Numbers
by Alfred S. Posamentier, Ingmar Lehmann
Paperback $22.95
Title: Unsolved!: The History and Mystery of the World's Greatest Ciphers from Ancient Egypt to Online Secret Societies, Author: Craig P. Bauer
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Unsolved!: The History and…
by Craig P. Bauer
Paperback $22.95
Title: The Enigmatic Sailor, Author: Alan Peacock
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The Enigmatic Sailor
by Alan Peacock
Paperback $22.95
Title: Code Warriors: NSA's Codebreakers and the Secret Intelligence War Against the Soviet Union, Author: Stephen Budiansky
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Code Warriors: NSA's…
by Stephen Budiansky
Paperback $22.00
Title: Tower of Secrets: A Real Life Spy Thriller, Author: Victor Sheymov
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Tower of Secrets: A Real Life…
by Victor Sheymov
#1 in Series
Paperback $22.00
Title: A Beautiful Mind: The Life of Mathematical Genius and Nobel Laureate John Nash, Author: Sylvia Nasar
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A Beautiful Mind: The Life of…
by Sylvia Nasar
Paperback $22.00
Title: Code Talker: The First and Only Memoir by One of the Original Navajo Code Talkers of WWII, Author: Chester Nez
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Code Talker: The First and…
by Chester Nez, Judith Schiess Avila
Paperback $22.00
Title: Code Girls: The Untold Story of the American Women Code Breakers of World War II, Author: Liza Mundy
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Code Girls: The Untold Story…
by Liza Mundy
Paperback $21.99

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