John R. Helliwell is Emeritus Professor of Chemistry at the University of Manchester. He was Director of Synchrotron Radiation Science at the Council for the Central Laboratories of the Research Councils (CCLRC). Professor Helliwell has served as President of the European Crystallographic Association (ECA). He was awarded a DSc degree in physics from the University of York in 1996 and a DPhil in molecular biophysics from the University of Oxford in 1978. He is a Fellow of the Institute of Physics, the Royal Society of Chemistry, the Royal Society of Biology, and the American Crystallographic Association. He is an Emeritus Member of the Biochemical Society. In 1997, he was made an Honorary Member of the National Institute of Chemistry, Slovenia. In 2000 he was awarded the Professor K Banerjee Centennial Silver Medal by the Indian Association for the Cultivation of Science in Calcutta, India. In 2015 he was elected a corresponding member of the Royal Academy of Sciences and Arts of Barcelona, Spain. He was made an Honorary Member of the British Biophysical Society in 2017. The same year, he became a Faculty 1000 Member, charged with highlighting significant science publications. He was elected an Honorary Life Member of the British Crystallographic Association in 2019. He was a Lonsdale Lecturer of the British Crystallographic Association in 2011, the Patterson Prize Awardee of the American Crystallographic Association in 2014, and the Max Perutz Prize Awardee of the European Crystallographic Association in 2015. Professor Helliwell has published more than 200 research publications and two research monographs. He has held leading roles within the International Union of Crystallography, most recently as Chairman of its Committee on Data and Chairman of its Book Series. He has chaired various science advisory committees at synchrotron X-ray and neutron facilities around the world including in France, Spain, Japan, the USA, Australia and Sweden.