KERRIE EYERS MA (Psych), DipEd, MPH, MAPS is a psychologist, teacher and editor with many years' experience in mental health, based at the Black Dog Institute, Sydney. GORDON PARKER AO, MD, PhD, DSc, FRANZCP, FASSA is Scientia Professor of Psychiatry at the University of New South Wales. He is a renowned researcher with an international profile and over 30 years' experience with mood disorders, and is author of the bestselling Dealing with Depression: A common sense guide to mood disorders. HENRY BRODATY AO, MB, BS, MD, DSc, FRACP, FRANZCP is Scientia Professor of Ageing and Mental Health at the University of New South Wales and an internationally recognised authority on ageing and dementia.