His work has been referenced in numerous publications and he. He founded Personality Junkie® in 2009 which has since grown to see over three million annual visitors. is a four-time author and recognized authority on personality typology. ENTP, ENFP, INTP, INFP Relationships & Compatibility. They are often very attracted to people who they find to be intelligent in different or unique ways, wanting to connect with them and their complex inner minds.