Tessa Wigney is a writer and is undertaking a PhD at the University of New South Wales, based at the Black Dog Institute, the mood disorders unit at the Prince of Wales Hospital in Sydney, Australia. Kerrie Eyers is a psychologist, a teacher, the publications consultant at the Black Dog Institute, and the editor of Tracking the Black Dog. Gordon Parker is a mood disorders researcher, a professor of psychiatry at the University of New South Wales, the executive director of the Black Dog Institute, and the author of Dealing with Depression.