This report summarized the impact of gambling advertisements on children, young adults, and vulnerable groups in the UK for GambleAware. Through many different types of studies, concerns were found about gambling advertisements. The report highlights the increase of gambling advertisements in recent years. The increase was found on both traditional and new media such as Twitter. Gambling advertisements affected people’s attitudes and future gambling behaviour. The report makes recommendations on how to reduce the harms of gambling advertising, and protect young people and vulnerable groups. It also identifies future research areas to better understand the impact of gambling advertising.