This book offers in-depth information on pathological hoarding, describing both the root of the disorder and its progression. How can hoarding disorder be diagnosed? What are the challenges involved in treatment? How can professionals best deal with those affected? In this practical guide, health professionals will find the answers to these and many other questions. In the last few years the awareness of this disorder has gradually increased – not only in the academic community, but also in the media – and it has become clear that there are a considerable number of people worldwide who continue to suffer from it. The case studies presented here share essential insights into the diverse backgrounds and lives of affected individuals. In addition, hoarding disorder has since been classified as a new mental disorder by the WHO, which means many psychoanalysts, psychologists, psychiatrists and social workers will need to be trained accordingly. This book offers valuable guidance.