MBTI is a set of personality testing tools developed by Swiss psychologist Jung on the basis of classifying personality types a hundred years ago, and then by an American mother and daughter, Miles, on the basis of a lot of practical research, which can make people know and understand themselves better and help human resources departments to better integrate different types of employees.

The basic principle of MBTI: Any living organism is engaged in the activities of receiving and processing information.

Everyone's cognitive way of receiving information is divided into perception S (perception) \ intuition N (intuition).

Everyone's way of judging information is divided into thinking T (thinking) \ feeling F (feeling).

Everyone's attention preference is divided into extroversion E (extroversion) \ introversion I (introversion).

Everyone's lifestyle determines their attitude towards perception and judgment, which can be divided into J (judgment) and P (perception).

Jung believes that when any one of the four basic psychological functions becomes a habit, we can label people's personality, which is what we call psychological type.

Each person's psychological types are mainly divided into leading function, auxiliary function, third function and low-level function according to the functional level. We can learn the four functions of individuals according to the three principles of functional dynamics such as judgment dominance, that is, the basis of obtaining their own main energy and strengthening the supplement of the weakest function, that is, fostering strengths and avoiding weaknesses.

Practice has proved that any type of person can do any job and be a manager. But only when the personality type matches the work can it be easier to get started and even make achievements.