Peter S. Cook, M.R.C.Psych., D.C.H., is a doctor who has specialized in psychiatry and worked and published in the field of child and family mental health. He is a member of the Royal College of Psychiatrists in the U.K. and a Fellow of the Royal Australian and New Zealand College of Psychiatrists. He has also written about conservation, environmental sustainability and related issues. His books include Early Child Care: Infants and Nations at Risk and Mothering Denied.