The document summarizes the Keirsey Temperament Sorter (KTS), a personality assessment tool developed in 1978 based on Carl Jung's work. The KTS uses a 70-question questionnaire to assess individuals on four domains of personality - how one is energized, how one processes information, how one makes decisions, and how one deals with structure - and assigns them one of 16 temperament types. It then provides detailed descriptions of each type and how understanding one's own type and others' can help with self-knowledge, teamwork, career choices, and personal and professional development.