MBTI is a 4-dimensional personality assessment invented by famous Psychoanalyst Carl Jung. Each dimension has 2 possibilities, so this method categorizes across 16 types of personality. Each type of personality is described by 4 letters. So for example, there is the introversion-extroversion dimension - which is the I or E part of the 4 letter code for each personality type. There are 16 personality types. The images below will show you famous people throughout history and modern times, and categorize them according to the 16 personality types. The personality types are explained, so you can understand what your favorite famous person is like!