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Mystery and detective stories (35)
Cryptography (25)
Ciphers (23)
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Suspense fiction (20)
Mystery fiction (19)
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World War, 1939-1945 › Cryptography (15)
Brothers and sisters › Fiction (10)
Cryptography › History (10)
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cryptography, mathematics (40)
cryptography, intelligence (24)
code, fiction (22)
WWII, cryptography (22)
fiction, puzzles (20)
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computers, history, science (18)
conspiracy, history, mystery (18)
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code, mystery (16)
computers, espionage (16)
fantasy, puzzles (16)
WWII, espionage (16)
WWII, espionage, non-fiction (16)
computers, history (15)
computing, history (15)
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Tag info: codes
Tag used 1,268 times by 529 users.
Most often tagged codes
- The Code Book by Simon Singh (109)
- The Da Vinci Code by Dan Brown (50)
- Cryptonomicon by Neal Stephenson (35)
- Digital Fortress by Dan Brown (21)
- Codes and Secret Writing by Herbert S. Zim (17)
- Codes, Ciphers and Other Cryptic and Clandestine… by Fred B. Wrixon (15)
- Chasing Vermeer by Blue Balliett (13)
- Enigma by Robert Harris (12)
- The Rule of Four by Ian Caldwell (12)
- Codes, Ciphers and Secret Writing (Test Your Code Breaking… by Martin Gardner (11)
- The Codebreakers: The Comprehensive History of Secret… by David Kahn (10)
- PopCo by Scarlett Thomas (10)
- The Lost Symbol by Dan Brown (9)
- Code Talker: A Novel About the Navajo Marines of World War… by Joseph Bruchac (8)
- The Mysterious Benedict Society by Trenton Lee Stewart (7)
- Between Silk and Cyanide: A Codemaker's War, 1941-1945 by Leo Marks (6)
- Seizing the Enigma: The Race to Break the German U-Boats… by David Kahn (6)
- Alan Turing: The Enigma by Andrew Hodges (6)
- The Case of the Left-Handed Lady: An Enola Holmes Mystery by Nancy Springer (5)
- Code Breaking: A History and Explanation by Rudolph Kippenhahn (5)
