Must read for the military or police.
This book, as many have stated, is great for understanding the psychology of someone returning from the battlefield. But for those who have yet to enter the battlefield, or will shortly find themselves returning, I suggest they read On Combat. That book deals much more with the subject of the physiology and psychology of the act of combat itself and how to prepare for it, rather than how to recognize and deal with it after the fact.

Good but the second book is much better
This is a very good book but pales in comparison to Col. Grossman's second book on combat. This book has a lot of data a is a little dry reading. However, the data is excellent and this book contains great information.

On Kiling
A bit of slow read but does get interesting every few pages. It is very easy to take the factors in this book and apply them to the business world - why do people get stressed out and burned out at work.

On killing review
It is interesting book for those who have illusions concerning any war. The book confirmed the basic thought that the fright to kill a person is more important than the fright to be killed. The nature programmed us to avoid killing a human being! Every war does not cost every life! Certainly, there is CONSCIENCE! The conscience torment to kill innocent children and women, fathers of mothers of somebody!

Great read
This is a very incite-full read and should be read before on combat. Very deep subject content and makes very good points about how our society is changing and not in a good way.