"Alive with clinical material, always illuminating and often surprising, this landmark collection of Melanie Klein’s previously unpublished technical writings provides a unique glimpse into the groundbreaking but always nuanced vision of a theorist whose ideas continue to shape today’s psychoanalytic conversations. Klein’s early lectures and a later series of seminars on technique show her grappling, creatively and compassionately, with the challenge of using her often startling insights to help suffering patients. The book is essential reading not only for those who are interested in the evolution of Klein’s thinking, but for anybody engaged in thinking about psychoanalytic theory and practice."-Jay Greenberg, Ph.D., Editor, The Psychoanalytic Quarterly.