Prelude to Overlord: An Account of the Air Operations Which Preceded and Supported Operation Overlord, the Allied Landings in Normandy on D-Day, 6th of June 1944

From the inside flap of the dust jacket: "Prelude to Overlord is an account of the factors and circumstances behind the huge Allied air offensive which preceded and supported Operation Overlord, the 6 June 1944 landings by Allied Armies on the beaches of Normandy which began the liberation of Western Europe from four years of German occupation."