Socionics -
the16types.info
I made it through 2 minutes 12 seconds...
“My typology is . . . not in any sense to stick labels on people at first sight. It is not a physiognomy and not an anthropological system, but a critical psychology dealing with the organization and delimitation of psychic processes that can be shown to be typical.” —C.G. Jung
Nice collection of dancing clips, information about the styles, entertaining mysticism. Would watch again.