Ptypes - A new, comprehensive, and systematic classification of 16 personality types. Criteria and links to pages about persons within each personality group. Comparison between Ptypes personality types, Keirsey's Myers-Briggs, Riso's enneagram, Oldham's personality style, and Brau's astrological signs. The Dimensions of Human Space - Theoretical paper on personality type, organizational form, and the structure of human consciousness. The Personality Project - A guide for those interested in personality theory and research, including readings, abstracts, and links.
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