Dermot Turing with the Colossus rebuild. Photo by KT Bruce.
Photo by KT Bruce

Featured Books

The Codebreakers of Bletchley Park cover

At Bletchley Park, some of Britain’s most talented mathematicians, linguists, and intellectuals were assembled to break Nazi codes. Kept secret for nearly thirty years, we have now come to realise the crucial role that these codebreakers played in the Allied victory in World War II.


X, Y & Z describes how French, British and Polish secret services came together to unravel the Enigma machine. It tells of how, under the very noses of the Germans, Enigma code-breaking continued in Vichy France. And how code-breakers from Poland continued their work for Her Majesty’s Secret Service, watching the USSR’s first steps of the Cold War.


The Story of Computing explores the history of the technology from the first attempts to use machines to solve mathematical problems to the IT which now pervades everyday life. Featuring eccentric and flamboyant personalities, brilliant discoveries, and fascinating insights into how computing has changed our world, this is the essential guide to a subject that none of us can ignore.


Reviews of Dermot Turing’s Books

I would not normally class a book of this genre as “unputdownable” but, in the 2 days it took me to read it, I had to force myself to stop and go to bed. Very highly recommended.

Stewart L Robotham, October 2020

…… a brisk, highly readable account of BP and the men and women who worked there.

Jonathan Beard, Michigan War Studies Review, July 2020

Turing writes on codebreaking with understandable authority and compelling panache.

Michael Smith, Bestselling Author of Station X, March 2020

Turing unearths a remarkable tale of intellect, bravery and camaraderie that reads like a nail-biting spy novel.

Joanne Baker, Nature, September 2018

Dermot Turing has written a great book filling out our picture of Second World War code-breaking. His prose crackles with energy and an appealing sense of humor, enhanced by dozens of photographs, many of which will be new even to devoted students of his subject.

Jonathan Beard, Michigan War Studies Review, November 2019

Enjoyable and lively narrative. Well informed and not just focused on USA companies/history. It’s a huge topic so the author has used a wide brush. There is some interesting detail that is worth further study.

Graeme Hugh Weston, January 2019

Articles on Cryptology

June 2019
The Typex Scare of 1943: How Well Did the British React to a Cypher-Security Scare? Proceedings of the 2nd International Conference on Historical Cryptology, HistoCrypt 2019.

June 2018
The Poles and Enigma after 1940: le voile se lève-t-il? Proceedings of the 1st International Conference on Historical Cryptology HistoCrypt 2018.

Talks on Cryptology

The National Museum of Computing. Bletchley, UK. Bombe at 80. Tracking Turing’s Design. Sir Dermot Turing explains the ‘hardware problem’ and ‘software problem’ analogy and the timeline of those involved which lead to design of the first Turing-Welchman Bombe. April 2020.

International Spy Museum, Washington DC, USA. Enigma Codebreaking: What Really Happened. February 2020.

Polish TV. Short documentary presenting new facts about breaking the Enigma, based on the files made available by French intelligence in 2016, told by world-renowned experts in the field of cryptology and Enigma history – Dr Marek Grajek, Sir Dermot Turing and Prof Philippe Guillot. November 2019.

Jubilee Congress of Polish Mathematicians on the 100th Anniversary of Polish Mathematical Society. X, Y & Z: The Real Story of How Enigma Was Broken. October 2019.

#BookTalk. An author series on topics shaping our world. Microsoft Europe. X, Y & Z: The Real Story of How Enigma Was Broken. September 2019.

Introduction to Bletchley Park Week at Kellogg College, Oxford. The origins of Enigma codebreaking at Bletchley. February, 2019.

Birkbeck College, London. A Brief History of Cryptography and Codes. May, 2018

Dermot Turing Introduces X,Y & Z: The Real story of How Enigma Was Broken

Useful links

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