books.google.com - The Principles for Understanding Kata are Largely Unknown Until Now The ancient masters developed kata, or "formal exercises," as fault-tolerant methods to preserve their unique, combat-proven fighting systems. Unfortunately, they deployed a two-track system of instruction where an 'outer circle' of...http://books.google.com/books/about/The_Way_of_Kata.html?id=KwjtqbXTLqwC&utm_source=gb-gplus-shareThe Way of Kata