World No Tobacco Day is held each year on 31 May and is organised by the World Health Organization (WHO). The WHO states that tobacco is the second major cause of deaths in the world, currently responsible for killing one in ten adults worldwide. This makes systematic reviews of methods of cessation and prevention of uptake of tobacco important. Cochrane Reviews of interventions for tobacco addiction provide guidance on their effectiveness and are essential for establishing evidence or the lack of it for different treatment or prevention techniques.