Excerpts from the book S.V. Kravkov “Self-observation” (Moscow: Russkiy knizhnik, 1922. 176 p.). In his study, S.V. Kravkov presents arguments in favor of the need for introspection, psychology, introspection separates from reflection, analyzes the mental processes that provide the opportunity to introspection introspective discusses ways of organizing research and other theoretical methodological issues arising in connection with introspection.