Myers Briggs Type Indicator (MBTI) – a personality assessment that has been used internationally and in the United States for decades.  Katherine Briggs and Isabel Briggs Myers, created the instrument based on the work of the Swiss psychiatrist, Carl Jung.  It is designed to measure natural preferences in four dichotomies: Energizing; Perceiving; Deciding: Living.  Economical and foundational team building tool for individuals, teams and organizations.