D-Day, June 6, 1944, and the seventy-six days of bitter fighting in Normandy that followed the Allied landing, have become the defining episode of World War II in the west--the object of books, films, television series, and documentaries. Yet as familiar as it is, as James Holland makes clear in his definitive history, many parts of the OVERLORD campaign, as it was known, are still shrouded in myth and assumed knowledge. Drawing freshly on widespread...