Nathan Critchlow is a researcher at the Institute for Social Marketing, University of Stirling. He specialises in quantitative methods to analyse tobacco and alcohol marketing activity and the association with knowledge, attitudes, and behaviours in consumers. His previous research includes analysing real-time retail data to monitor price and market changes following the introduction of standardised tobacco packaging, surveys of adolescent and young adult exposure to alcohol marketing, and other research into digital marketing, new media, sport sponsorship, and pricing. He is on the board of directors at Alcohol Focus Scotland, has previously been a member of the Salvation Army UK and Ireland’s Scottish Drug and Alcohol Strategy Group, and delivers postgraduate and continuing professional development training as part of the UK Centre for Tobacco and Alcohol Studies.