Facial neuropsychology is not limited to describing expressions, but proposes to analyze the neurobiological mechanisms that generate them, the cognitive structures that modulate them and the psychosocial impacts they produce, defends Prof. Freitas-Magalhães, the world's leading expert for Neuroscience and Biobehavioral Psychology and the Encyclopedia of Human Behavior, by Elsevier, Oxford, in his pioneering and extraordinary book about the facial neuropsychology.