In conversation with Rob Feltham, Professor Ian Robertson discusses some of the themes from his recently published and critically acclaimed book entitled How Confidence Works. He describes how confidence is something of a self-fulfilling prophecy and how it can be enhanced, and he draws attention to the upsides and downsides of overconfidence and narcissism. He provides fascinating insights into: the role of confidence in leadership, including gender differences; leadership differences across individualistic and collectivist cultures; and the psychology of Brexit. Listeners will also be interested to hear something about Ian’s career journey and his future aspirations. Ian is co-director of the Global Brain Health Institute, Professor Emeritus of Psychology at Trinity College Dublin, and Research Professor at the University of Texas at Dallas. He is a clinically trained psychologist and neuroscientist who is internationally renowned for his research on neuropsychology. He has written five books and numerous newspaper and magazine articles, and made appearances on BBC radio and in several major television documentaries.