Jung allotted a code to all his personality types, a total of 16. Each are composed of the 4 letters designated to each preference. The synergy between the 4 preferences is what makes each person unique and different from the rest. You can find what your personality type is by taking the MBTI assessment.
Since MBTI is a psychological assessment, only qualified career development practitioners, psychologists, or another mental health professionals can administer it. If you’re planning to take and benefit from MBTI, make sure you approach someone who is certified to administer MBTI. The MBTI is also accessible online from the Center for Applications of Psychological Type (CAPT), which was co-founded by Isabel Briggs Myers.
The professional-in-charge who administers the MBTI will also provide you with a result report that includes your 4-letter code with a brief introduction of all 16 codes. If you are using this assessment for career planning, remember that while all 4 letters are essential to know, the middle two (indicating how you perceive your circumstances and arrive at a decision) are the most important when it comes to making career choices in the long-run.