http://www.amazon.co.uk/Facing-Violence-Unexpected-Rory-Miller-ebook/dp/B005BOMP6C/ref=sr_1_1?ie=UTF8&qid=1392807987&sr=8-1&keywords=facing+violence

Gives an interesting breakdown of what really happens during no holds barred violence - exposing you to several very uncomfortable truths - which of course, you can use how you like.. What's most useful about it, is that you can translate it to getting shit done in your own life, and to subtle social violence that occurs in workplaces, clubs etc.