In this episode, Xavier Bonilla has a dialogue with W. Keith Campbell about the research on narcissism. They define narcissism and explain the three types: grandiose, vulnerable, and narcissistic personality disorder (NPD). They talk about state vs. traits vs. disorder and the three theoretical models of narcissism along with the 4 major models of narcissism. They discuss general personality traits such as the big-5 and some of the personality measures. They discuss NPD, dark triad, light triad, and energetic triad, and how narcissism can present in relationships, dating, leadership, and on social media. They also talk about the adaptive aspects of narcissism, managing narcissism, and many other topics. 
W. Keith Campbell is a professor of psychology at the University of Georgia and is a leading expert on narcissism. He is widely published in scientific journals and has appeared in many major outlets. He is the author of The New Science of Narcissism. You can find his work here.