Understanding personality disorder has never been easy, and in the past, the old classifications didn't help, being complicated and confused. Now, new classifications of personality disorder have been drawn up by the World Health Organisation (WHO) to make PD easier to diagnose and to treat. This book, by the chair of the advisory body for the WHO, presents simpler definitions of personality disorder, in line with the forthcoming International Classification of Diseases (ICD-11) in 2018. This book is for those who've been diagnosed with PD, and for family, friends and carers who want to understand more about PD, specifically, how to cope, and how to best help the person and ensure he or she gets the right treatment. It explains how to recognize the various types of PD, and presents valuable advice on dealing with them from a world expert on PD.