"This book is the third edition of What the Face Reveals, which was first published in 1997. Some pieces that appeared in previous editions have been preserved, while others were omitted to make room for new work. In the process of this revision, the editors came up with a new structure to the book, organized around substantive topic areas. There are seven sections. Section 1 on Animal FACS is one of the most compelling areas of new work on FACS. As of early 2018, FACS has been applied to 6 species: chimps, orangs, macaques, gibbons, dogs, horses, and cats automated measurement. Section 2 on Automated FACS Measurement is one area that has seen enormous growth in the research over the past two decades since the publication of the first edition of this book. Section 3 on Basic Affective Science contains four classic articles that used FACS to study spontaneous behavior. Section 4 contains four chapters on infant development. Section 5 on Pain contains a reprint one classic study by Craig and three new papers that use FACS to understand pain displays in a variety of contexts and populations. Section 6 on Psychopathology contains studies that use FACS to try to uncover and describe how observable facial behavior might distinguish among diagnostic groups. Finally, Section 7 on Social & Health Psychology contains articles that use FACS to study psychological process involved physical and psychological health, social behavior, and emotion"--