#2 Ballantine's Illustrated History of World War II / the Violent Century: Weapons Book
Panzer Division: The Mailed Fist
"Confident in the knowledge that they had beaten the German Army to a standstill in 1918, the armies of Western Europe once more came to grips w ith their old enemy in May 1940 - and within a few days lay prostrate before a numerically inferior but technically superior and revolutionary weapon - the Panzer Division."