He has written extensively about narcissism. He is the author of the Malignant Self Love. Vaknin is a world authority on narcissism. He understands narcissism and describes the inner mind of a narcissist with great skill. When he talks about narcissism everyone listens. He says that Obama’s language, posture and demeanor, and the testimonies of his closest, dearest friends suggest that the man is either a narcissist or a man with narcissistic personality disorder (NPD).