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An in-depth look at the Nazi's 'unbreakable' cipher and the efforts to decode it.

Table of Contents

1 From the time of Caesar
2 A new style of spying
3 Breaking machines with a pencil
4 Bletchley Park
5 Between X and Y
6 The Naval Enigma
7 America joins the fight
8 The last Enigmas
9 The final analysis
10 Legacy
Bibliography
Index
Picture Credits

About the Author

Dermot Turing graduated from King's College Cambridge and New College Oxford. He spent his career in the legal profession, most recently as a partner of Clifford Chance. Since 2014 he has moved into a more varied range of activities, including a stint as a trustee of Bletchley Park. Dermot Turing is the nephew of Alan Turing and author of Prof: Alan Turing Decoded (2015), the well-received X,Y and Z: The Real Story of How Enigma Was Broken (2018) and The Codebreakers of Bletchley Park (2020).