In this concise yet illuminating volume, Giuseppe Craparo explores the work of Pierre Janet, deftly outlining his theory of mind and pioneering studies on dynamic psychology, trauma, and dissociation. Craparo covers the main concepts of Janet’s theory, from disaggregation, fixed ideas, psychic force, and psychic tension to the field of consciousness and subconscious. Working from the view that Janet was not only a forerunner of psychoanalysis, this book shows how his work at the intersection of medicine, philosophy, and experimental psychology retains vital relevance for contemporary practice. This book provides new perspectives on Janet’s influence on Freudian and Relational Psychoanalysis, as well as his working relationship with Freud. Pierre Janet: A Contemporary Introduction is essential reading for practicing psychologists, psychotherapists, and psychoanalysts, as well as students and scholars interested in Janet and his legacy in the fields of psychotraumatology and psychoanalysis.