Personality disorders present unique challenges for therapists. The renowned authors Peter Fiedler and Sabine C. Herpertz illustrate the various personality disorders and their treatments. In the 7th edition, the individual personality disorders and their treatment are thoroughly described based on the new DSM-5 criteria. This standard work is a must-have for every psychotherapist, psychiatrist, and clinical psychologist and should not be missing from any practice. Treating patients with personality disorders is challenging because they are considered difficult. But is that really the case? Not at all – patients with personality disorders are also receptive to change and can be successfully treated. In the 8th edition of the classic by Peter Fiedler and Sabine Herpertz, readers will learn everything about the etiology, diagnostics, and treatment of ten personality disorders. The focus is on diagnostics, with the DSM-5 presenting both the recommended approach in Section II and the alternative model in Section III. The changes that ICD-11 will bring and their impact on the treatment of personality disorders are illustrated. New in the 8th edition: Inclusion of ICD-11 in diagnostic and treatment concepts, new chapter "Emotionally Unstable and Borderline Personality Disorder.".