Jean-François Etter has been conducting research on smoking etiology, prevention and cessation for over 20 years. He has published widely on smoking cessation trials and various psychological questions related to tobacco dependence and smoking cessation. He is an internationally known expert on e-cigarettes. He has published a comprehensive book on e-cigarettes and is credited with publishing some of the first scientific papers on the reasons and patterns of e-cigarette use. Professor Etter's basic training was in political science and public health. He is a Professor at the Faculty of Medicine of the University of Geneva, Switzerland.