Designed as a textbook for upper level undergraduate and graduate students of psychology, this book contains useful chapter previews and summary material and is richly illustrated. Starting with an overview of some of the challenges involved in studying emotion, Plutchik discusses how thinkers such as Darwin, James, Cannon and Freud have conceptualized emotion and then describes the views of many contemporary researchers and theoreticians concerning emotions. Subsequent chapters examine such topics as the links between emotions and cognitions, the linguistic problems involved in trying to describe emotions, key contemporary theories of emotion, measurement and assessment issues, the functions of facial expression, how emotional expressions and thinking develop and change over the lifespan, insights evolutionary theory offer into the nature and generality of emotions, how humans and other animals communicate emotion, and how brain mechanisms are related to emotions. Concluding chapters of the book provide a detailed examination of the literature on love and sadness, and fear and anger. The final chapter discusses the nature of emotional disorders and some of the ways clinicians attempt to deal with them.