"How does the brain build facial expression? How facial expression influences the brain? How are facial movements measured scientifically? What are the implications and applications of facial expression?" Asks Dr. Freitas-Magalh?es, Ph.D., the world's leading expert in facial expression of emotion, in his pioneering and extraordinary book commemorating the 40th anniversary of the Facial Action Coding System (FACS). Dr. Freitas-Magalh?es, Ph.D., has just been the only one distinguished by the Encyclopedia of Human Behavior and the Neuroscience and Biobehavioral Psychology, by Elsevier, in Oxford.