This interview is an exception to our “single author monographs” rule, because the edited collection that is its topic is an intellectual achievement worth making an exception for in over 12 years of New Books in Philosophy podcasts. Emotion Theory: The Routledge Comprehensive Guide: Volume I and Volume II (Routledge, 2024) is a two-volume compendium of 62 chapters on emotion theory written by 101 leading theorists from philosophy, psychology, biology, sociology, neuroscience, and other fields, all grappling with the question: What is an emotion? Editor Andrea Scarantino, who is a professor of philosophy at George State University, has compiled a synoptic and thematically organized collection that covers the history of emotion theory, the main contemporary theories of emotions, individual chapters on 35 distinct emotions, and more. The volumes bring together theorists from distinct disciplines that don’t normally engage with each others’ work, and provide readers with a one-stop-shop for clearly written introductions to the current states of play in emotion research.Andrea Scarantino is Professor of Philosophy at Georgia State University, where he has taught since 2005.Carrie Figdor is professor of philosophy at the University of Iowa. Learn more about your ad choices. Visit megaphone.fm/adchoices