Yes, Sam Vaknin. I have and read his book many years ago ..cover to cover ...Malignant Self Love, Narcissism Revisited. I'm pretty sure I shared that here some time ago.
I am overall loving how Narcissism awareness is spreading. Although I dont have any platform, I do my best to share what I know to as many as possible.
If you dont mind, can you share who the 2 psychologists are? I love listening to new people.