This new textbook of mentalizing therapies provides a coherent, scientifically sophisticated, and clinically practical guide to navigating the broad conceptual, empirical, and clinical territory the editors claim that mentalizing covers. The book is divided into two main sections. In the first section, the authors outline the scientific and conceptual bases of mentalization-based treatment and the basic clinical approach involved in mentalizing therapies, as well as a number of modifications of techniques for different psychotherapeutic settings (e.g., group therapy, family therapy, child therapy, brief treatment, partial hospital, outpatient). The second section is devoted to describing specific applications of mentalizing therapies for treatment of different psychiatric presentations, such as borderline and antisocial personality disorder, eating disorders, trauma-related disorders, depression, and drug addiction. Each chapter explicates these different aspects and applications of mentalizing, with presentation of supporting scientific data as well as practical clinical techniques. The separate chapters in the book are coherent on their own but, altogether, are integrated and not repetitive. The book is designed in a way that allows mental health practitioners to start by reading a few chapters and enrich their perspectives on the approach as they read further.