About the Author: Mark Sampson works as a clinical psychologist in two Community Mental Health Teams (CMHTs) in South Manchester. He has been a part of these teams for the past five years and during this time developed experience and expertise in working with patients with personality disorder. He originally trained as a general and psychiatric nurse before studying psychology, obtaining a doctorate in clinical psychology from the University of Manchester in 1999. He uses integrative approaches to working with patients with personality disorders, but is strongly influenced by cognitive and cognitive analytic therapies.

Remy McCubbin first studied Biology at Southhampton University, graduating in 1987. He went on to study for a MA in Psychology at Nottingham University, graduating in 1993, before working on an evaluation of three CMHTs in the Midlands. In 1998 he completed a doctorate in clinical psychology, since which time he has worked across several community teams in South Manchester. This has inspired an interest in personality disorder, and has led to a recognition of the importance of such difficulties in the response to treatment of many people seen by these services. He has an interest in several forms of therapy, and the potential advantages of integrating various approaches within multi-disciplinary interventions. Away from personality disorder, he has an interest in the role of affective avoidance in the maintenance of various Axis I and Axis II disorders.

Peter Tyrer is the Head of the Department of Psychological Medicine at Imperial College, London, Honorary Consultant in Rehabilitation Psychiatry, Central North West London Mental Health NHS Trust, and Honorary Consultant in Assertive Outreach (IMPACT team) in West London Mental Health Trust. He obtained his medical qualifications at the University of Cambridge at St Thomas's Hospital London in 1965 and trained in psychiatry at the Maudsley Hospital and Institute of Psychiatry, London. He has carried out research into personality disorder since he was a medical student and has published two books and over 100 original articles on the subject. He is the founder president of the British and Irish Group for the Study of Personality Disorders and the Co-Chair of the Section on Personality Disorders of the World Psychiatric Association. He is a Fellow of the Academy of Medical Sciences, of the Faculty of Public Health, of the Royal College of Physicians, and of the Royal College of Psychiatrists. He is the Editor of the British Journal of Psychiatry and on the editorial board of seven other journals. Despite his academic interests he still regards himself primarily as a 'coal-face' psychiatrist, who has learnt most from his patients--and among the most stimulating and challenging of these have been those with personality disorder.