Carl Jung developed a theory of personality types that divided people into introverts and extroverts based on where they direct their energy. His daughter Isabel Briggs Myers further developed his theory into the Myers-Briggs Type Indicator (MBTI) which sorts people into four dichotomies: extraversion vs introversion, sensing vs intuition, thinking vs feeling, and judging vs perceiving. The MBTI provides insight into how individuals learn, make decisions, communicate, and manage time and energy. Understanding one's personality type through the MBTI framework can help people appreciate differences and find balance between their preferred and non-preferred traits.