Peter J Barnes is Margaret Turner-Warwick Professor of Medicine at the National Heart and Lung Institute, Head of Respiratory Medicine at Imperial College and Honorary Consultant Physician at Royal Brompton Hospital, London. He qualified at Cambridge and Oxford Universities (first class honours) and was appointed to his present post in 1987. Professor Barnes has published over 1,000 peer-review papers on asthma, chronic obstructive pulmonary disorder and related topics (h-index 161) and has written or edited over 50 books. He is amongst the 20 most highly cited researchers in the world and has been the most highly cited respiratory researcher in the world over the last 20 years. He was elected a Fellow of the Royal Society in 2007, the first respiratory researcher for over 150 years. Professor Barnes has given several prestigious lectures, including the Amberson Lecture at the American Thoracic Society (ATS) and the Sadoul Lecture at the European Respiratory Society (ERS), and was President of the latter in 2013–14.