MBTI(Myers-Briggs Type Indicator) is a compulsory and self-reported personality assessment test, which is used to measure and describe people's psychological activities and personality types in obtaining information, making decisions and treating life. It was written by American psychologist catherine cook Briggs (1875- 1968) and her psychologist daughter Isabel Briggs Myers according to the famous Swiss psychoanalyst Carl G Jung's psychological type theory and their long-term observation and research on human personality differences. After more than 50 years of research and development, MBTI has become the most famous and authoritative personality test in the world today. The tendency of MBTI shows the differences between people, and these differences arise from:-where they focus their attention and where they get their motivation (extroversion and introversion)-the way they get information (feeling and intuition)-the way they make decisions (thinking and emotion)-how they position themselves in the world; The process of cognition or judgment (judgment and perception) is represented by letters as follows: energy domination: extroversion e- introversion i, knowing the world, feeling s- intuition n, judging things, thinking about t- emotion f, life attitude and judging j- perception p, which can be combined into 16 personality type. Reveal to you the characteristics, strengths and weaknesses of your personality type (and other 15 personality types) in love, career and personal development. More importantly, let you know how to "control" your personality and let it have a positive impact on your life development.