Carolynne Cooper, MSW, RSW, is a social worker at Toronto's Centre for Addiction and Mental Health, and a member of the Motivational Interviewing Network of Trainers. She works with groups and individuals using a number of models of psychotherapy for a range of clinical problems such as depression, anxiety, bipolar illness, and addictions, including substance abuse and gambling. Wayne Skinner, MSW, RSW, is Deputy Clinical Director in the Ambulatory & Structured Treatment Program at Centre for Addiction and Mental Health. An Assistant Professor in the Department of Psychiatry and Adjunct Senior Lecturer in the Factor-Inwentash Faculty of Social Work at the University of Toronto, he is Associate Editor (Canada) for the journal, Mental Health & Substance Use and a member of the Motivational Interviewing Network of Trainers (MINT). Robert Maunder, MD, is Associate Professor in the Department of Psychiatry at the University of Toronto and head of research for Mount Sinai Hospital's Department of Psychiatry. His primary research interest is the role of interpersonal attachment on health. Paula Ravitz, MD, is Associate Professor, Morgan Firestone Psychotherapy Chair, and Associate Director of the Psychotherapy, Health Humanities, and Education Scholarship Division for the Department of Psychiatry at the University of Toronto, where she leads IPT training. She is also the director of the Mt. Sinai Psychotherapy Institute. Her clinical practice, teaching, and research focus on IPT and attachment informed psychotherapy.