The greatest codes ever invented and how to break them

by Mark Frary , Mark Frary

“Whether your sending messages from behind enemy lines or hiding codes in cat memes, ciphers have been used to deliver secret messages for centuries – here are some of the most mind-boggling.”BBC Science

“Who doesn’t love a good mystery? […] One of the things I loved most about this book was the volume of detail crammed within its 176 pages. […] this is a wonderfully researched and well presented book […] I found that I devoured the pages with the codebreakers of history, ones that I had no clue about as well as more familiar faces.”Popular Science

  • A timely reference work in the light of the rise of Wikileaks and recent political hacking activity
  • Includes discussion of key techniques, from ancient transposition ciphers and methods of steganography through later advances such as polyalphabetic systems and on to modern computerised methods, covering the full historical and scientific development of encryption
  • Detailed overview of 45 of the world’s most important codes and ciphers, from the Great Cipher to the secure hash algorithm used today to verify online digital signatures
  • Special features on codebreakers from history, including Étienne Bazeries and Alan Turing, whose breakthroughs have won wars and transformed our understanding of history


Publication date: 02/11/2017
ISBN: 9781911130376
RRP: £14.99
Format: Hardback
Illustrations: Over 85 2-colour photographs, diagrams and tables
Extent: 176
Dimensions: 197 x 140 mm / 5.5 x 7.75 in
Genre: Popular Science