This is the sister page to the Personality Page, which provides an extensive coverage of the Myers-Briggs Type Indicator (MBTI). Although Keirsey's 4-Temperament Model is useful in and of itself, it also serves as the foundation for the MBTI. This Model, I think, is a lot easier to get to know than the MBTI's 16 personality types. There's basically 4 categories, and these temperaments have been covered extensively on the Net. I picked out the 4 best Web sites.