Panzer Greift An (known as
Tank Attacks in English) is an unfinished book on armoured tactics and warfare by Erwin Rommel. It was to be the follow-up and companion work to his earlier and highly successful
Infantry Attacks.
It is believed he started writing it while commandant of the War Academy at Wiener Neustadt (Theresian Military Academy) in 1938, though he may have started earlier during his time as an instructor at the Potsdam War Academy (1935–37). His career as a military theorist and instructor, however, was preempted by his duties as a commander and soldier during World War II.
The Tank In Attack exists only in the form of scattered manuscripts and notes, but due to the fame of its author, it has achieved legendary status as a work of military literature.
In the film Patton, a book with this title is on the nightstand when he is awakened by his aides who inform him that Rommel is about to attack his army. When the battle is over, Patton exclaims "Rommel, you magnificent bastard, I read your book!".
http://en.wikipedia.org/wiki/Panzer_Greift_An