Carl Jung (3 of 17)
Jung vs. Freud
Jung has a vastly different view from his predecessors. First of all, he incorporated Eastern philosophy ( mainly from Hinduism and Buddhism) into the ideas of psychology.
Comparing Freud's Id, Ego and Superego, Jung believed in a collective subconscious the connects us all.
He also made popular the idea of archetypes and different personalities, like being introverted and extroverted. The Myer'sBriggs Personality test is based on his work. If you haven't taken it in awhile, it might be a more personal and fun way to review.
Although, I have a feeling it's going to be mostly, INFJ's, or counselelors!