Detailed guide to understanding myer-briggs personality types and tests platforms. Personality tests divides people into 16 different types, called sociotypes which are; ESTJ, ENTJ, ESFJ, ENFJ, ISTJ, ISFJ, INTJ, INFJ, ESTP, ESFP, ENTP, ENFP, ISTP, ISFP, INTP & INFP