The fundamental principles governing good body use are largely unknown, ignored or misunderstood by many of the experts in the field - whether doctors, phsyiotherapists, sports coaches, fitness trainers or performing arts teachers. The first part of the book explains the principles of the Alexander Technique, a precise and thorough means of improving the use of the self. The second, illustrated part, relates principles to procedures, and shows how to put the techniques to use in everyday activities.