Laura J. Dietz is a clinical and developmental psychologist and Associate Professor in the Department of Counselling and Behavioural Health at the University of Pittsburgh. Her research focuses on the study of family risk factors and psychosocial stress on the development of depression and anxiety, adapting and implementing evidence-based interventions for mood disorders, and developing community-based service models in under-resourced areas to increase access to mental health services. For the past fifteen years, Dr. Dietz has developed, manualized, and tested the efficacy and putative treatment mechanisms of Family Based Interpersonal Psychotherapy (FB-IPT) for Depressed Preadolescents. She is an accredited IPT supervisor and president-elect of the International Society of Interpersonal Psychotherapy (ISIPT). Dr. Dietz trains and supervises clinicians and graduate students in Interpersonal Psychotherapy for Depressed Adolescents (IPT-A) and Family-based interpersonal psychotherapy (FB-IPT) and promotes the dissemination and implementation of IPT to increase access to evidence-based mental health services in the United States and internationally. Fiona Duffy is a Senior Lecturer at Edinburgh University where she is part of the Eating Disorders and Behaviours Research Group, and a Consultant Clinical Psychologist in NHS Lothian Child and Adolescent Mental Health Service (CAMHS), Edinburgh where she co-leads the eating disorder team. Fiona is an IPT-UK accredited IPT supervisor and trainer, and she runs the IPT courses delivered from Edinburgh University. She leads the IPT-UK research group and has specific research interests in eating disorders and body image in children and adolescents and Interpersonal Psychotherapy (IPT). Patricia Graham is an honorary professor (Strathclyde University), Consultant Clinical Psychologist and Director of Psychological Services in NHS Lanarkshire, Scotland. She has over twenty-seven years' experience working in the field of Adult Mental Health and is a practitioner, supervisor and trainer for different modalities of Psychological Therapy. She holds degrees in Psychology, BSc (Hons) and Clinical Psychology, DClinPsychol and Scots Law, LLB. Professor Graham is Chartered with the British Psychological Society (BPS) as an Associate Fellow and is the Joint Chief National Assessor for the profession of Psychology for the UK, on behalf of the BPS and ACP (Association of Clinical Psychologists) and Lead National Assessor for Scotland. She is an Expert Witness and currently is an advisor and mentor to Insight Works Training operated by Kings View Chambers, medical defence barristers. Dr Paula Ravitz is a Professor of Psychiatry at the University of Toronto, Temerty Faculty of Medicine whose academic scholarship is focused on improving access and clinical outcomes of mental healthcare through capacity-building, knowledge exchange and implementation of evidence-supported psychotherapy practices. Her publications include systematic reviews, clinical process and outcome research, along with invited contributions to national consensus depression treatment guidelines (CANMAT) and the CPA position paper on the role of psychotherapy in psychiatry.