Instruct: Classify the given review as either positive or negative.
Query: Fairbairn, the man from the famous commando dagger!

A clear and plain book! little time is wasted on philosophic mumbo jumbo. A quick book to learn from. The techniques are very easy and effective and thus very useful for everybody; so I would surely recommend it for beginners; for advanced students: this book gives you an extra edge, no NEW techniques but that does not matter with this book. If you want to learn self defense from a book, this book is gonna help you. keep in mind that the use of some techniques could bring you to jail but can also save your life. The unarmed section is also suitable to set up self defense courses, it does not cover every situation, but it is a firm base to start from! There are no flashy jump kicks here and no flowery techniques. Not a book for sissies!