theoretical models that explain the patterns and mechanisms of professional formation of the individual. They include the differential-diagnostic concept (F. Parsons), the theory of professional development (D. Super), the concept of professional self-determination (E. A. Klimov), the theory of professionalization (N. S. Glukhanyuk), the concept of professional development (L. M. Mitina), the concept of professionalism (A. K. Markova), the concept of professional formation (E. F. Zeer). Each concept emphasizes various aspects of professional development: the individual’s compliance with the profession, age dynamics, self-determination, and the stage of development. These concepts serve as a methodological basis for the practical work of psychologists.