The Alexander Technique was invented by Frederick Matthias Alexander in Australia at the close of the 19th century. He observed that the body could have perfect balance and poise with little or no tension, and that many activities and functions were improved in this state. This is an introduction to the technique, description of the principles on which it is based, and discussion of the effects of regular practice on health and wellbeing, the emotions, and on artistic and athletic performance. By using case studies, the author shows that the technique can have profound benefits in every aspect of life.