nctions — thinking, feeling, sensation or intuition. This typology was developed by the Swiss psychiatrist C. G. Jung in his work "Psychological Types", published in 1921. The purpose of psychological typology, according to Jung, is not a simple classification of people into categories. Typology, in his opinion, is, firstly, a researcher's tool for organizing an infinitely diverse psychological experience in a kind of coordinate space (a "trigonometric grid," writes Jung). Secondly, typology is a practical psychologist's tool that allows, based on the classification of the patient and the psychologist himself, to choose the most effective methods and avoid mistakes.