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Codes and Ciphers: Clever Devices for Coding and Decoding to Cut
£2.68
eBay
Introduction to Codes and Ciphers: Plus 20 Famous Unsolved Codes, Ciphers, and Mysterious Writings. Can You Solve Them?
£7.31
Amazon
Codes and Ciphers: Julius Caesar, the Enigma, and the Internet By R. F. Churchh
£4.66
eBay
Cracking Codes with Python: An Introduction to Building and Breaking Ciphers
£21.89
Amazon
Codes, Ciphers and Secret Writing (Dover Children's Activity Books),Martin Gard
£2.73
eBay
Post-Quantum Cryptography: Code-based Cryptography and Hash Based Signatures Schemes
£42.00
Amazon
The Code Book: The Secret History of Codes and Code-breaking by Simon Singh Book
£4.99
eBay
Can You Crack the Code?: A Fascinating History of Ciphers... - Schwartz, Ella
£3.65
eBay
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Turing and the Psychic: Codes, Souls and the Shadow of the State
£7.99
Amazon
Occult Alphabets Scripts and Ciphers : Of the Western Magical Tradition
£11.39
Hive Books
Celestial Code of Scripture : The Astral Cipher Underlying the Miracle ...
£20.12
eBay
The Ultimate CODE WORD Book 1: Volume 1 (200 Cleverly Crafted Codeword Puzzles)
£6.20
Amazon
Trivia Cryptograms: When the Code Is Cracked, It Reveals a Fact
£8.54
Amazon
TECH DECODER PUZZLES FOR KIDS PUZZLES FOR KIDS: The Ultimate Code Breaker Puzzle Books For Kids - STEM (Ultimate Code Breakers For Kids)
£7.99
Amazon
Codeword Puzzle Books for Adults: 100+ Puzzles for Adults and Teens, Large Print Codeword Puzzle Book for Adults, Codewords
£4.97
Amazon
The Ultimate Code Breaker's Puzzle Book : Over 50 Puzzles to become a super spy, crack codes and train your brain
£9.19
Hive Books
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