The book gives teachers a grounding in biomechanics so that they can easily use yoga and/or stretching with their students. Most yoga teacher schools provide only limited training in anatomy and biomechanics, and the study of the effect of mechanical forces on structure and function is often overlooked and/or misunderstood. Aesthetic cues (i.e. instructing students where to place their hands and feet in yoga asana) may not be biomechanically appropriate for everyone. Readers will learn to fit the pose to the student, rather than making the student fit the pose.