A new special issue of the journal Addiction examines the state of knowledge on regulating alcohol marketing. In an overview, Maristela Monteiro, Thomas Babor, David Jernigan and Chris Brookes summarize three key themes in these papers: alcohol marketing causes harm to vulnerable populations; industry self-regulation is ineffective in protecting vulnerable populations; and alternatives are available to address the problem. They conclude that renewed action by governments to control alcohol marketing is needed.