"Mr. Kenyon's book adds substantially to our understanding of the vast operational-intelligence machine that the Allies assembled."--Helen Fry, Wall Street Journal "With access to thousands of documents declassified in the last forty years, he paints a . detailed picture of BP and of the Normandy campaign."--Jonathan Beard, Michigan War Studies Review "David Kenyon and Bletchley Park is the dream ticket. A wonderful scholar and communicator writing about one of the world's most fascinating historical sites."--Dan Snow, historian, documentary filmmaker, and television presenter "Fascinating, readable and significant. David Kenyon takes us beyond the code-breaker heroics of movie-makers into a far richer portrait of Bletchley as nothing less than an 'intelligence factory,' showing why it was so important for D-Day.

"--David Reynolds, coauthor of The Kremlin Letters "This book fills a critical gap in the historiography of both Bletchley Park and Normandy, drawing on many primary sources that have only recently become available. It is also a well written work of very high scholarship from which even experts will learn much."--Stephen Badsey, author of Normandy 1944.