In his book Rethinking Narcissism, Dr. Craig Malkin distinguishes between three types of narcissists—the extrovert, the introvert, and the communal.
The extrovert is the easy-to-spot kind whose grandiosity is presented in Technicolor, the preener and the manipulator we’re most familiar with. The introvert (also called the “covert” narcissist) is somewhat more confounding because he or she lacks outward braggadocio and may have a self-effacing or vulnerable manner which belies the way he or she feels superior to everyone. But the communal narcissist is entirely something else. I hadn’t heard of this category until I read Malkin’s descriptions, and perhaps you haven’t, either. This third type of narcissist is a relative newcomer to the party; the designation is only a bit over a decade old.