War As I Knew It" is the World War II memoirs of General George S. Patton, beginning with the Operation Torch landings in North Africa in 1942 and continuing to the German Surrender on May 8, 1945. Patton died a few months after the end of the war. I suspect that this explains its fairly unpolished style.
This book is, essentially, World War II as Patton observed it. It verifies many of the scenes and dialogues which we enjoy in the movie "Patton". It does not get into deep analysis of the war or explanations of his actions. It is good in reporting the movements of the various units under his command. There is very little about the rivalry between himself and Montgomery or the competition for resources between the Third Army and others. From reading this you would not learn that there was any controversy over the slapping of a soldier in the hospital. One must look elsewhere for a realization that the relationships between Patton and Eisenhower and Bradley were crucial and changed as the war progressed.
I read this book in the hopes of getting a better understanding of Patton's approach to the war which he led. In this I was moderately disappointed. I do recommend it as a second book on Patton through which to obtain a deeper understanding, but would not recommend it as a first book. As a first hand report on the war, I do not rate it up with Eisenhower's "Crusade in Europe" (see my Amazon review). For an understanding of Patton, I recommend "Patton: Ordeal and Triumph" by Ladislas Farago (see my Amazon review) as a starting point with "War As I Knew It" as a supplemental work.