This book is about understanding and managing patients with severe personality disorders. It covers biological, psychoanalytic and cognitive-behavioural approaches and provides a pragmatic guide to best practice, based on the published evidence, where this is available. As well as discussing issues of severity, treatability and the range of appropriate management options, the content explores the common elements of effective interventions and covers early prediction, countertransference, disruptions of the therapeutic alliance, suicidal crises and what to do when dealing with dangerous, refractory and stalking patients.