Joël Billieux is associate professor of clinical psychology, psychopathology, and psychological assessment at the university of Lausanne, and Co-director of the Cognitive and Affective Regulation Lab (CARLA), Institute of Psychology (IP), University of Lausanne (UNIL). He is also an associate researcher at Center for Excessive Gambling (Lausanne University Hospitals). His main area of research regards the psychological factors (cognitive, affective, motivational, interpersonal) involved in the etiology of addictive behaviors (with a particular focus on self-regulation-related processes), and the conceptualization and diagnosis of behavioral addictions. He also conducts research focusing on the effect of emerging technologies on human behavior, and on the therapeutic use of tabletop role-playing games. Since 2014, he has been an expert in a World Health Organization (WHO) workgroup related to the public health implications of behavioral addictions associated with the excessive use of ICTs and is currently involved in the management of the WHO collaborating center “innovation and treatment of disorders due to substance use and addictive behaviors (WHO-CC-SWO-87) located at the addiction medicine service from the psychiatry department at Lausanne University Hospitals. He is a contributor of ICD-11 CDDR (Clinical descriptions and diagnostic requirements for ICD-11 mental, behavioural and neurodevelopmental disorders) section on “substance use disorder and addictive behaviors”. He published more than 390 research papers and holds editorial positions in various addiction and cyberpsychology journals (e.g., Journal of Behavioral Addictions, Addictive Behaviors, Computers in Human Behaviors).