Book excerpt: Learn the 42 Essential Principles of Tai Chi & Qi GongThis book is designed to teach the fundamentals that drive and underpin internal arts training at all levels and stages of development, not a form. Each of the 42 principles, portrayed as images and accompanied by brief explanations, are aimed at conveying how internal arts techniques function in ways that help you embed them and feel them come alive in your flesh - regardless of the specific systems, styles or forms you train.