W. John Livesley, MD, PhD, is Professor Emeritus in the Department of Psychiatry at the University of British Columbia, Canada. His research focuses on the structure, classification, and origins of personality disorder, and on constructing an integrated framework for describing and conceptualizing personality pathology. His clinical interests are directed toward developing a unified approach to treatment. Dr. Livesley is a Fellow of the Royal Society of Canada. He is a past editor of the Journal of Personality Disorders.

• All titles by W. John Livesley

Roseann Larstone, PhD, is Research Associate in the Northern Medical Program at the University of Northern British Columbia, Canada. She holds an adjunct appointment in the Faculty of Medicine at the University of British Columbia. Her research has focused on personality and psychopathology, adolescent social–emotional development, and adolescent mental health. Dr. Larstone is currently involved in community-based research and program evaluation in the area of health promotion for mental health service recipients. She is a past assistant editor and current editorial board member of the Journal of Personality Disorders.