Self-centered sorts are people who are overly focused on themselves and their own interests. Swellheads, egoists, and egotists are all terms used to describe such individuals. Swellheads are people who have an inflated sense of self-importance, while egoists are those who are excessively concerned with their own needs and desires. Egotists are similar to egoists, but they are more likely to talk about themselves and their accomplishments.