This chapter explains how facial expressions of emotions are produced and which physical features of the face convey emotional expressions. It talks about neural substrates of the perception of emotion from faces, addressing the brain regions involved and the temporal dynamics of their responses. The chapter discusses other aspects of faces that are related to emotion perception and elicitation. It reviews two main types of models that have been proposed to classify the facial expressions of emotions. In addition, the role of the amygdala extends to the perception of emotion from other cues than faces. The chapter further reviews the role of the main regions involved in the perception of emotions from faces. It talks about the pulvinar, and then describes the involvement of the regions classically associated with the perceptual analysis of faces. The chapter briefly mentions other cortical regions that have general roles in emotion.