With a combined 50 years of research and advocacy experience in tobacco control, Simon Chapman and Becky Freeman set out the evidence for the importance of plain packaging in striking at the heart of what remains of tobacco advertising. They examine the history of the idea, the tobacco industry’s frantic efforts to derail it, and the early evidence for its impact. Most importantly, they give tools to policy makers in other countries wanting to make the best case for plain packaging and to defend it from the inevitable attacks that will follow.