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On Killing: The Psychological Cost of Learning to Kill in War and Society Paperback – Illustrated, June 1, 2009
| Dave Grossman (Author) Find all the books, read about the author, and more. See search results for this author |
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The good news is that most soldiers are loath to kill. But armies have developed sophisticated ways sophisticated ways of overcoming that instinctive aversion. The psychological cost for soldiers, as evidenced by the increase in post-traumatic stress, is devastating. This landmark study brilliantly illuminates the techniques the military uses to help soldiers kill and raises vital questions about the implications of escalating violence in our society.
- Print length416 pages
- LanguageEnglish
- PublisherBack Bay Books
- Publication dateJune 1, 2009
- Dimensions5.5 x 1.2 x 8.2 inches
- ISBN-100316040932
- ISBN-13978-0316040938
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Product details
- Publisher : Back Bay Books; 1st edition (June 1, 2009)
- Language : English
- Paperback : 416 pages
- ISBN-10 : 0316040932
- ISBN-13 : 978-0316040938
- Item Weight : 12.7 ounces
- Dimensions : 5.5 x 1.2 x 8.2 inches
- Best Sellers Rank: #7,863 in Books (See Top 100 in Books)
- #13 in Law Enforcement (Books)
- #13 in Law Enforcement Politics
- #14 in Coping with Suicide Grief
- Customer Reviews:
About the author

In their description of Lt. Col. Dave Grossman, Slate Magazine said, “Grossman cuts such a heroic, omnicompetent figure, he could have stepped out of a video game.” He has five patents to his name, has published four novels, two childrens’ books, and six non-fiction books to include his “perennial bestseller” On Killing (with over half a million copies sold), and a New York Times best-selling book co-authored with Glenn Beck.
He is a US Army Ranger, a paratrooper, and a former West Point Psychology Professor. He has a Black Belt in Hojutsu, the martial art of the firearm, and has been inducted into the USA Martial Arts Hall of Fame.
Col. Grossman’s research was cited by the President of the United States in a national address, and he has testified before the U.S. Senate, the U.S. Congress, and numerous state legislatures. He has served as an expert witness and consultant in state and Federal courts. He helped train mental health professionals after the Jonesboro school massacre, and he was also involved in counseling or court cases in the aftermath of the Paducah, Springfield, Littleton and Nickel Mines Amish school massacres.
Col. Grossman has been called upon to write the entry on “Aggression and Violence” in the Oxford Companion to American Military History, three entries in the Academic Press Encyclopedia of Violence, Peace and Conflict and has presented papers before the national conventions of the American Medical Association, the American Psychiatric Association, the American Psychological Association, and the American Academy of Pediatrics.
Since his retirement from the US Army in 1998, he has been on the road almost 300 days a year, for over 19 years, as one of our nation’s leading trainers for military, law enforcement, mental health providers, and school safety organizations.
Today Col. Grossman is the director of the Killology Research Group (www.killology.com). In the wake of the 9/11 terrorist attacks he is has written and spoken extensively on the terrorist threat, with articles published in the Harvard Journal of Law and Civil Policy and many leading law enforcement journals, and he has been inducted as a "Life Diplomate" by the American Board for Certification in Homeland Security, and a "Life Member" of the American College of Forensic Examiners Institute.
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Reviewed in the United States on August 28, 2016
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My job involved hard labor and was just what I needed because I really wasn’t fit for polite society for the first year. After a year and a half I applied at several local law enforcement agencies and was hired by one with Civil Service. While working full time I also went back to college and got my degree in Criminal Justice. The image of the Vietnam Vet back then was of a deranged person who climbed onto a rooftop and started shooting people. I didn’t discuss Vietnam, or my recurring “Vietnam Dream”, with anybody. I needed the job, I liked the job, and I didn’t want people to think that I was crazy. Frankly, I wasn’t totally sure that I wasn’t, at least to some degree.
After about twenty years on the dept, and I was a Lt. by then, I was assigned to attend a seminar on Deadly Force and Pursuit Policies. One of the instructors was a Psychologist who covered the symptoms of PTSD. I suddenly realized that after my return from Vietnam I had fit the profile perfectly.
After retirement I was a Federal Courthouse Security Officer for eleven years. Another CSO had a copy of “On Killing” by Lt. Col. David Grossman and I read it, several times. Since then I have purchased my own copy, twice. I think that Grossman got it about 90+% right. I am not going to pick the book apart because, as Jesus warned, “while you are pulling the weeds, you may root up the wheat with them”. Also, I could be in error about that other 10%. Every time I read the book I learn something new, or relearn something I had forgotten. I recommend this book most highly to every combat veteran and law enforcement officer!
The book slaps a hideous roof on this monument to bad science by hiding behind the authority of Jack Thompson. This book was written in 1996, and with the benefit of hindsight (it’s now 2019) we can easily see the cracks in the facade. If the name Jack Thompson sounds familiar, it’s because he was a Florida lawyer who made national headlines in the mid-2000s with his crusade against violent video games. A crusade which ended with Thompson’s disbarment and disgrace.
The truth is, violence can be perpetrated by anyone under the right circumstances. The factors are complicated, as are the solutions. There’s no silver bullet (pun intended). Outlawing violent video games/entertainment will do nothing but make us feel better, at least until the next mass school shooting. Violent crime has already fallen in the US. If we want to continue this trend, we must do the serious, delicate, difficult work of grappling with the real reasons behind violence. That means funding mental health services and getting real data behind the factors that lead to violence and solving those as well.
In short: if you came looking for answers to the “epidemic” of violence in the US today, keep looking. You’ll find no science of value in this book.
Thanks, Lt. Col. Grossman, for studying this topic with such rigor and for explaining your work so cogently.
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So I appreciated reading on this topic and learned things. However, I think that this huge and critical topic also deserves a review with higher conceptual and evidence standards. I think that there are other good books out there - don't feel obliged to start here.
As a contrast, the book "War Games: The Psychology of Combat" covers much of the same material in a much more accessible style.










