According to 16personalities.com,

Since the dawn of time, we have tried to describe and categorize ourselves in many ways. From the four temperaments of the Ancient civilizations – sanguine, choleric, melancholic and phlegmatic – to the latest advances in psychology, people have been restless in their pursuit of a good, reliable way to fit something as complex and fluid as human personality into a well-defined model.

Not sure of your personality type? Take the test for free here.

In the 1920’s Carl Jung’s theory was noticed by a teacher with an interest in personality typing, Katharine Cook Briggs. Briggs developed her own type theory. Accompanied by her daughter, she developed a way to describe the order of a person’s Jungian preferences, thus, creating the acronyms for each possible pair of personality traits.

Introversion (I) vs. Extroversion (E)
Intuition (N) vs. Sensing (S)
Thinking (T) vs. Feeling (F),
Judging (J) vs. Perceiving (P).

Your personality effects everything you do, from going out with friends to the type of books you read. Based on your personality type, psychologists are able to predict relationship habits, general weaknesses and strengths in addition to parenting styles and mannerisms. Not all of these predictions are 100% accurate, but are mostly somewhat true if you’re personality type reflects who you are.

There are Sixteen Possible Personality Pairs:

INTJ: The Architect.

INTJ’s work best alone, and prefer to work alone more then any other personality type. INTJ’s are happiest when given complex theories, always have a plan and are most effective in careers in strategic problem solving.

represent 2-4% of the population
Best Careers: scientist, engineer, medical doctor, attorney or military leader.

INTP: The Logician

INTP’s are innovators with a unique thirst for knowledge. People with this personality type are usually creative, insightful, brilliant and trust their own insight above others.

3-5% of the population
Best Careers: physicist, chemist, a photographer or a mechanic.

ENTJ: The Commander

ENTJ’s are strong-willed, natural born leaders. They value knowledge, and they love turning their theories into plans. The need things to be structured and in order, and have very excellent communication skills.

2-5% of the population
Best Careers: business executive, entrepreneur, lawyer, judge or a university professor.

ENTP: The Debater

ENTP’s love anything that challenges their thinking! People with this personality generally have an interest in people, slog with lively and energetic traits. ENTP’s resist being controlled by others, and are born leaders, but they’re not fond of controlling others. They’re logical, rational thinkers and are also project oriented.

2-5% of the population
Best Careers: psychologist, a photographer, an actor, a sales rep or a systems analyst.

INFJ: The Advocate

INFJ’s are outgoing, yet quiet, but also very inspiring with endless ideas. People with this personality type are described as visionaries. They’re natural service-oriented leaders, who value deep and authentic relationships. They’re displeased when faced with details unless it enhances their vision. INFJ’s are sensitive, highly principled, and reserved.

1-3% of the population
Best Careers: photographer, musician/ artist, social work, health care professions, and religious work.

INFP: The Mediator

INFP’s are always looking to help others with their kind and poetic personality. People with this personality type are usually flexible with a sensitive and inspirational growth objective. They are excellent in written communication skills. Like the INFJ, the INFP’s value deep and authentic relationships, prefer to work alone, and don’t favor detail.

4-5% of the population
Best Careers: councilor, social worker, teacher, musician or religious worker

ENFJ: The Protagonist

ENFJ’s can easily persuade people to follow them, with their charismatic traits. People with with personality type tend to value the feelings of other, and are warmly interested in others. They value harmony, and will easily create it in any situation. ENFJ’s are loyal and honest, along with creative and imaginative.

2-5% of the population
Best Careers: sales or manager positions, psychology related careers or social workers

ENFP: The Campaigner

ENFP’s are project-oriented while being very cooperative and friendly. They’re also service-oriented and love to put others needs before their own. With their free spirit ways they can always find a reason to smile.

6-8% of the population
Best Careers: teacher, writer, politician or a systems analyst

ISTJ: The Logistician

ISTJ’s will work hard and log to fulfill their duties. They value tradition and security and often times dislike abstract thinking. Because of this, ISTJ’s favor and appreciate order and a neat workspace. They’re also not very in touch with others feelings and with their practical and fact based mindset ISTJ’s reliability can not be doubted.

11-14 % of the population
Best Careers: administrative’s assistant, judge, attorney, medical doctor or a dentist

ISFJ: The Defender

ISFJ’s are very observant, which makes them in-tune with their surroundings. ISFJ’s love creating order and structure. They also learn best in a hands-on environment. The title “defender” describes the ISFJ’s dedication to loved ones perfectly.

9-14% of the population
Best Careers: nurses, child care providers, social workers, designers, business managers or careers dealing with religion

ESTJ: The Executive

ESTJ’s can’t be described better than an executive. People with this personality type generally love to be in charge, with excellent organizational abilities. They has little patience for incompetence, and have clear standards they live by. ESTJ’s are hard workers with dependable manor; you can certainly count on them to get the job done.They are excellent managers of tasks and people.

8-12% of the population
Best Careers: military leaders, police officers or detectives.

ESFJ: The Consul

ESFJ’s are always eager to help other people. Organized, loyal, and caring, an ESFJ can find a good career in a number of fields because they typically are warm hearted individuals who like structure and schedule. People with this personality type often love communicating and interacting with people. ESFJ’s also have extremely caring and social personalities.

9-13% of the population
Best Careers: nursing, social work, bookkeeping, business managers or administrators

ISTP: The Virtuoso

While being able to master any tool, the ISTP’s are bold experimenters. With an interest in why things work, ISTP’s are also very observant and have a great tendency to gather facts about their environment. People with this personality type usually learn better in a hands on environment.

4-6% of the population
Best Careers: police officers, detectives, engineers, mechanics, forensic lab workers or computer programmers

ISFP: The Adventurer

ISFP’s have an artistic mind and love to live in the moment. They dislike dealing with theory or abstract thought. They’re normally individualistic having no desire to lead or follow. Always up for an adventure, people with this personality type are very artistic and ready to explore anything.

5-9% of the population
Best Careers: artists, designers, social workers and careers dealing with child care or teaching

ESTP: The Entrepreneur

ESTP’s are action-oriented, fun to be around, and fast-paced so naturally, ESTP’s make great facilitators. People with this personality types often tend to be highly observant, spontaneous and less structured. While living on the edge of life, people with this personality type are usually perceptive, energetic, and intelligent people.

4-5% of the population
Best Careers: sales representative, marketer or emergency medical personnel

ESFP: The Entertainer

People with this personality type are typically spontaneous, they feel a bond with children and animals, and are also independent and resourceful. Life is never boring around ESFP’s with their spontaneity, enthusiasm, and outgoing energy.

4-9% of the population
Best Careers: careers dealing with children, photographers, designers, sales representatives or counselors

Determining an individual’s personality type is not an exact science. Along with many things that have to do with psychology, personality types are concluded by analyzing someone’s behavior and mannerisms. This is done by having the test taker answer a series of questions to judge a person’s morals, value and character. The career suggestions in the descriptions above are not a list of jobs you must pursue in order to succeed, but based on your personality type. Everyone is different, including two people that may have the same personality type. These suggestions are just generalized based on your personality test results.