This book is really awesome. I love the 350-plus full color high resolution photos of real-world bloody gunshot wounds and other trauma. It has multiple chapters that explain step-by-step how to perform every basic and advanced medical procedure that may be needed in a combat environment. The author's credentials are excellent and they have years of experience behind them. The book has over 90 contributing editors / reviewers from throughout the world. Its definitely the best book of its type available. One author (Dr. Campbell) is the founder / director of BTLS / International Trauma Life Support, and another author (Dr. Heiskell) leads and directs the only tacmed school in the world authorized / accepted by the Department of Homeland Security. Another author (Dr. Wipfler) has done special ops with US Secret Service, US Marshals, and supports 3 SWAT teams, over 115 SWAT callouts. This book is also endorsed / supported by the American College of Emergency Physicians, so you know it's excellent quality. Overall a great book and highly recommend it!