In this book you will find basic concepts, things that are more or less universal among all knife fighting styles. If you know them, you can confidently defend yourself in a martial conflict. The book is organized as set of lessons, rather than as a reference guide. Every lesson is composed of the set of exercises, starting from simple ones and up to a complex issues as details and variations are added to cover a particular subject. If you go through these lessons, performing exercises until you are comfortable with them, you will get a solid background in knife fighting, but it is not a complete reference guide to everything knife-related. Reference guides are useless if you want to learn or at least I never seen one that is better than a textbook. Think of this book as of a tutorial covering a one-year-long-twice-a-week class containing a set of skills that you must know, no mater what style you practice.