Dr Diarmuid O’Donovan is a medical doctor based in the west of Ireland. He is Senior Lecturer in Social and Preventive Medicine at the National University of Ireland, Galway, and a Director of Public Health in the Irish health service. He has lived and worked in Sub-Saharan Africa and the UK, and is involved in research and education on health and development issues. O’Donovan is the author of The Atlas of Health.