What is narcissism, and why do so many successful people seem to be narcissists? In this conversation I speak with Professor Mitja Back from the university of Muenster, who is one of the worlds leading experts on the topic of Narcissism. We discuss narcissism as a personality trait, how narcissistic traits develop (nature vs nurture), relationship breakdown, narcissism on social media, and the link between narcissism and success.