Stephen Touyz, PhD, FAED is a Professor of Clinical Psychology and Clinical Professor in Psychiatry at the University of Sydney. He is Chair of the Executive Committee of the Centre for Eating and Dieting Disorders, Co-Editor in Chief Journal of Eating Disorders, on the Editorial Board of the International Journal of Eating Disorders and other leading journals in the area. In 2006 he was elected President of the Eating Disorders Research Society. He has received numerous awards for his work in research in the field of eating disorders including the prestigious Leadership in Research Award from the international Academy for Eating Disorders in 2012. Daniel Le Grange, PhD, FAED is Benioff UCSF Professor in Children’s Health, and Eating Disorders Director in the Department of Psychiatry and Department of Pediatrics at the University of California, San Francisco, CA, and Emeritus Professor of Psychiatry and Behavioral Neuroscience at The University of Chicago, Chicago, IL. Dr. Le Grange is a Fellow of the Academy for Eating Disorders, a Member of the Eating Disorders Research Society, Associate Editor for the Journal of Eating Disorders and BMC Psychiatry, and serves on the Editorial Boards of the European Eating Disorders Review and the International Journal of Eating Disorders. Dr. Le Grange is the 2013-2014 recipient of the Presidential Chair Award at UCSF, and the 2014 recipient of the Academy for Eating Disorders Leadership in Research Award. J. Hubert Lacey, MD, MPhil, FRCPsych is Emeritus Professor of Psychiatry at St George’s, University of London where he was Chairman of Department. He is Medical Director of the Eating Disorders (ED) Units at Newbridge House, Birmingham and the Nightingale Hospital in central London. He developed the St. George’s ED Service into the largest in the United Kingdom (UK) for which he received NHS awards. He has designed and established seven other ED services, in-patient, day- and out-patient services. He is Senior Board Trustee on the UK charity for ED. He has held senior positions in the University of London, the Royal College of Psychiatrists and the National Health Service. He is Chairman of the European Council on ED and member of other international ED organisations. He is on the Boards of ED journals. Prof Lacey has published extensively on ED over 45 years including the first published treatment for bulimia and first description of multi-impulsive EDs. He has published on diagnosis, pathogenesis and different treatment approaches. He has received many award for teaching He has a special interest in patients with SE-AN. Phillipa Hay, DPhil (Oxon), MD (Otago), FAED, FRANZCP is Foundation Chair of Mental Health at Western Sydney University and Senior Consultant in Psychiatry at Campbelltown Hospital. Amongst other journal responsibilities she is Co-Editor-in-Chief Journal of Eating Disorders, Academic Editor for PLOS Medicine, and on the Editorial Board of the International Journal of Eating Disorders. She is Deputy Chair of the National Eating Disorders Collaboration and was Chair of the 2014 Royal Australian and NZ College of Psychiatrist Clinical Practice Guidelines for Eating Disorders. In 2015 she received the Lifetime Achievement Award from the Australian and New Zealand Academy for Eating Disorders.