Professor Gerry Stimson is a leading advocate for tobacco harm reduction and an Emeritus Professor at Imperial College London. A public health social scientist, with over 50 years’ experience of research and advocacy, he was one of the founders of drugs harm reduction in the 1990s, helping to develop and evaluate harm reduction in the UK as a response to HIV/AIDS. Gerry has advised the UK Government, WHO, UNAIDS, UNODC, the World Bank and numerous governments around the world on issues relating to drugs, HIV infection and AIDS, and alcohol. He has also published over 220 scientific publications and several books. Currently, Gerry is advisor to Knowledge•Action•Change, and is involved in the FSFW-funded Global Tobacco Harm Reduction Initiative. He is also a co-founder of the Global Forum on Nicotine, which has been delivered by KAC Communications since 2014.