User Heart Menu Basket Cross Plus < Minus <

Books by Joel Greenberg

  • Alastair Denniston

    Joel Greenberg

    Product Code: BGJHZ
    Hardback
    Some of the individuals who played key roles in the success of Bletchley Park in reading the secret communications of Britain s enemies during the Second World War have become well-known figures. However, the man who created and led the organisation based there, from its inception in 1919 until 1942, has, surprisingly, been overlooked until now. In 1914 Alastair Denniston, who had been teaching French and German at Osborne Royal Navy College, was one of the first recruits into the Admiralty s fledgling codebreaking section which became known as Room 40. There a team drawn from a wide range of professions successfully decrypted intercepted German communications throughout the First World War. After the Armistice, Room 40 was merged with the British Army s equivalent section MI.1 to form the Government Code and Cypher School (GC&CS). Initially based in London, from August 1939 GC&CS was largely located at Bletchley Park, with Alastair Denniston as its Operational Director. Denniston was moved in 1942 from military to civilian intelligence at Berkeley Street, London.Small at first, as Enigma traffic diminished towards the end of the Second World War, diplomatic and commercial codebreaking became of increasing importance and a vital part of Britain s signal intelligence effort. GC&CS was renamed the Government Communications Headquarters (GCHQ) in June 1946, and moved to the outskirts of Cheltenham. It continues to be the UK s signal intelligence gathering organisation. With the support and assistance of the both the Denniston family and GCHQ, Joel Greenberg, author of Gordon Welchman, Bletchley Park s Architect of Ultra Intelligence, has produced this absorbing story of Commander Alexander Alastair Guthrie Denniston OBE, CBE, CMG, RNVR, a man whose death in 1961 was ignored by major newspapers and the very British intelligence organisation that was his legacy.
    • £19.89
    • RRP £25.00
    • Save £5.11
    More info
  • Gordon Welchman

    Joel Greenberg

    Product Code: AJAMQ
    Hardback
    'A magnificent biography which finally provides recognition to one of Bletchley's and Britain's lost heroes.' Michael Smith The Official Secrets Act and the passing of time have prevented the Bletchley Park story from being told by many of its key participants. Here at last is a book which allows some of them to speak for the first time. Gordon Welchman was one of the Park's most important figures. Like Turing, his pioneering work was fundamental to the success of Bletchley Park and helped pave the way for the birth of the digital age. Yet, his story is largely unknown to many. His book, The Hut Six Story, was the first to reveal not only how they broke the codes, but how it was done on an industrial scale. Its publication created such a stir in GCHQ and the NSA that Welchman was forbidden to discuss the book or his wartime work with the media. In order to finally set the record straight, Bletchley Park historian and tour guide Joel Greenberg has drawn on Welchman's personal papers and correspondence with wartime colleagues which lay undisturbed in his son's loft for many years. Packed with fascinating new insights, including Welchman's thoughts on key Bletchley figures and the development of the Bombe machine, this is essential reading for anyone interested in the clandestine activities at Bletchley Park.
    • £20.00
    • RRP £25.00
    • Save £5.00
    More info