Professor Gerry Stimson is a leading advocate for tobacco harm reduction. A public health social scientist, with over 50 years’ experience of research and advocacy, he was one of the founders of 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. He is a co-founder of the Global Forum on Nicotine.  Gerry is advisor to the  Knowledge•Action•Change projects on tobacco harm reduction including the Tobacco Harm Reduction Scholarship Programme and the Global State of Tobacco Harm Reduction project. He is Emeritus Professor at Imperial College London.