Hanna Segal has for many years been a leading contributor to psychoanalytic practice and thought and a major teacher and spokesperson of the Kleinian school. Jean-Michel Quinodoz, a senior voice in European psychoanalysis and the author of this volume, belonged in his early analytic career to a group in Geneva taught and supervised by Segal; he remains her close colleague and friend. Together, using a unique and effective format that combines personal interviews, comprehensive summaries of Segal's work, and incisive commentaries by the author and other distinguished analysts from diverse cultures and regions, they have combined to produce a volume in the Teaching Series of the New Library of Psychoanalysis that offers readers a thoughtful and detailed introduction to Segal's many contributions and the historical context in which they evolved. Beginning with a personal chapter that they call Segal's