Harald Becher is Professor of Cardiac Ultrasound at Oxford University and a Consultant Cardiologist at the John Radcliffe Hospital in Oxford. His research has involved the development of echocardiographic techniques such as colour Doppler echocardiography, stress echocardiography and contrast echocardiography. He is the author of the Handbook of Contrast Echocardiography and one of the co-editors of the Oxford Handbook of Echocardiography. He has written 10 book chapters and is the author of more than 100 scientific papers. Professor Becher is Co-Editor of the Journal of Echocardiography and a member of the Editorial Board of the Journal of the European Society of Echocardiography. He graduated from the University of Heidelberg in 1979 and went on to complete his clinical training in internal medicine and cardiology at the University Hospitals of Hamburg and Bonn, Germany.