GCHQ, Cheltenham
Official launch of “Prof: Alan Turing decoded”
October 8th, 2015


Prof: Alan Turing Decoded is a biography written by Turing’s nephew, Sir Dermot Turing, and celebrates an extraordinary man, mathematician, codebreaker, computer scientist and biologist.

The event at GCHQ’s Cheltenham headquarters also celebrates the launch of a special edition of the book, available to GCHQ staff only, with a bespoke cover and a foreword written by GCHQ Director Robert Hannigan.

Prof Book Cover GCHQ Special Edition

Profits from the sales of this edition are being donated to two charities close to the organisation’s heart – GCFund, which helps GCHQ staff and their families in times of financial distress, and the Bletchley Park Trust. Thanks to the generosity of GCHQ’s staff, over £20,000 was raised to be split between the charities.

“The successors of Alan Turing at GCHQ today continue to be inspired by his achievements in defence of his country. Our diverse workforce is a reflection of how much has changed since Turing’s time but we share the same creative spirit and passionate dedication to our work.”

Robert Hannigan, Director GCHQ

Sharing previously unpublished photographs from the Turing family album, Dermot Turing offers a unique family perspective and his own commentary on the life and discoveries of his uncle in Prof: Alan Turing Decoded. Dermot brings his own personal insights, drawn from family sources, interviews with Alan’s contemporaries, and other materials not available to previous researchers, including:

  • documents about to be released by GCHQ not available at the time of the last major biography
  • letters written by Alan Turing which came to light in 2014
  • Alan Turing’s notebook which was rediscovered and sold earlier in 2015
  • Alan Turing’s brother’s archive of papers from 1954 when Alan died.


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