BLETCHLEY PARK AND D-DAY: The Untold Story of How the Battle for Normandy Was Won

Drawing on unclassified documents, recent scholarship and the archives of Bletchley Park itself, Kenyon explores how information extracted from enemy signals traffic was collated and the effect it had on the conduct of the war. By integrating its own information with that from other sources, Bletchley was able to supply Allied commanders with vital knowledge. Photos.