The Cochrane Tobacco Addiction Group at the University of Oxford in the UK is one of the oldest groups working on Cochrane Reviews. It has produced dozens of these during the last two decades and, in 2016, it embarked on a project to identify the top priorities for future research into tobacco control. After an extensive and intensive period of information gathering and processing, the findings were published in September 2017. We asked Jamie Hartmann-Boyce, Senior Researcher and Managing Editor in the Cochrane group to tell us about the global importance of what they found.