Richard Bryant is the world-leading authority in early psychological responses to trauma. He has identified the core biological and psychological factors that occur immediately after trauma and that influence the long-term trajectories of mental health. His diagnostic and treatment protocols have been translated into over 15 languages, and are the gold standard protocols used in most countries following traumatic events. Bryant is the most published and cited clinical psychologist in Australia and he consults widely with international agencies on mental health. He and wrote the major texts on early psychological response to trauma that have set the international research agenda in this field.