R.O. Gandy an emeritus reader in mathematical logic and a fellow of Wolfson College, Oxford, spent the last year of the war designing radio equipment for an intercept station near Bletchley. Alan Turing was building a speech encoder in the same workshop.
Just before the outbreak of war the Government Code and Cypher School (GC & CS) moved from London to Bletchley Park in Buckinghamshire. In 1939, some hundred or so people were working there; by the end of the war there were about seven thousand. This book contains reminiscences by 30 of them, describing what they did and what life was like at Bletchley.
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