This instructional and reference manual is a visual index of facial expressions. It centres on the muscles of expression and their effects as a basis for understanding and analyzing those expressions they see on models and in photographs. Artists will be aided in understanding expression and in creating expression. The book is organized around three parts - part one analyzes the basic structures of the head, the fundamental forms of the skull and recurring proportions, all in preparation for understanding full facial expression in part three. Part two describes the muscles of expression in the three key parts of the face. In part three, the basic facial forms from part two are combined to form the six basic human expressions - joy, sadness, anger, fear, disgust and surprise. Each expression is depicted in steadily increasing intensity. Examples of facial images are drawn from a variety of photographic art and artistic sources.