The purpose of this site is both practical and theoretical. Theoretically, it is focused on deepening and clarifying type theory. This includes exploring the nature of the “functional stack,” the inferior function, the Jungian/cognitive functions, and the 16 personality types. Although we initially focused on the Intuitive Introverts (i.e., INFJ, INFP, INTJ, INTP), we have now expanded our scope to include information and personality profiles for all the types.
Via David Hain