Created and maintained by G. Scott Acton, a PhD in psychology from Northwestern University, this site functions as a gateway to materials relating to personality theory. The Website offers introductory, often hypertext essays on various topics in personality theory followed by an annotated listing of relevant links. Some of the topics covered include attachment theory, basic emotions, behavior genetics, behaviorism, cognitive social theory, evolutionary psychology, the five-factor model, intelligence, interpersonal theory, personality disorders, psychoanalysis, and others. There are also sections specifically geared for students and professionals as well as listings of links to papers, Websites, readings, and scholars available on the Web.