Dr Joel Greenberg is an author and historian. He received his PhD
in Numerical Mathematics from the University of Manchester (UMIST)
in 1973. He worked for the Open University for over 33 years, and
held a number of senior management positions at Director level.
He has written the authorised biographies of two key figures in the
story of signals intelligence, Gordon Welchman and Alastair
Denniston. The Welchman book, Gordon Welchman, Bletchley Park’s
Architect of Ultra Intelligence, is the basis of a joint
BBC/Smithsonian Network 2015 documentary about Welchman – The
Forgotten Genius of Bletchley Park.
The Denniston book, Alastair Denniston, Code-breaking from Room 40
to Berkeley Street and the Birth of GCHQ, is both a biography and
an account of signals intelligence from its early development to
the birth of GCHQ. Denniston was the first Head of GCHQ and the
book was launched at its headquarters on 7 September 2017 in honour
of him.
"There have been several books about what went on at Bletchley Park in the past few years, in fact there is another title from Pen and Sword on this page, concerning the amazing exploits of Jenny Nater. There is no doubt that the most high profile of these operatives was Alan Turing, who featured in the recent brilliant film The Imitation Game, starring Benedict Cumberbatch; and various news items on our local news have featured interviews with old ladies who once worked on the codes at Bletchley Park, people who were not even allowed to tell their closest family members what they were doing. Joel Greenberg's bookabout Gordon Welchman reveals a man equally as fascinating equally as important as Turing, and tells us even more about what went on in this most secret of establishments during the war years."-- "Books Monthly"
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