This book is well-researched and excellent and let us know deeply what German formation and their strength(manpower, gun and armored vehicles)in Normandy. It is much better than some other book vague description of battle of Normandy because all is based upon German document and facts by figures. I hope the author will write some other topic in this format eg. Barbarossa 1941 or Byelroussia 1944 or Salerno landing 1943.