MBTI (Myers-Briggs Type Indicator) classifies personalities into 16 types based on 4 dimensions: Extraversion/Introversion (E/I), Sensing/Intuition (S/N), Thinking/Feeling (T/F), Judging/Perceiving (J/P).

Compatibility is based on cognitive function stacks, shared traits, and complementary differences. Generally, types that share middle letters (S/N and T/F) communicate well, while opposite types can balance each other.

MBTI compatibility is for entertainment purposes only. Real relationships depend on many factors including communication, respect, shared values, and personal growth. Any two types can have a successful relationship with effort and understanding.