This is a very good book, I believe that everyone who wants more realistic Combat Rules and new Strategies, Proficiency's and Tatics will enjoy a lot this book. Many things is incluided like the new Critical Hit's System and table's of critical Hit's Severity. Ignore The guy that gave 1 star to this book, he probaly never read it or even have played AD&D because if he had, he will not say a stupid thing like a Goblin with a dagger taking off a arm from a Human. So if you want good and realistic Combat to your campaign you should already had this book! GET IT!