The Enneagram is an ancient system. The people encountered by Ulysses in The Odyssey, perhaps the oldest work in western literature, are character types derived from the Enneagram. Anyone who has seen the film O Brother Where Art Thou can also recognize the Enneagram types in the film, since it is based on The Odyssey. The Enneagram study system identifies nine types, three associated with each of the three centers of the soul, will, heart and head. Common names for the nine types are, beginning with nine and ending with eight, Peacemaker, Perfectionist, Giver, Winner, Romantic, Observer, Trooper, Optimist, and Boss.

There are a few other personality typing methods we look at. One is Love Languages, a typing system that can aid in understanding how best to show love to the people in our lives to promote healthy, rewarding relationships.

Another typing system is Myers-Briggs. This system identifies people as either introverts or extraverts, intuitive or sensory, thinking or feeling, and using perception or judgment in decision making.