The paper presents the descriptor dictionary of 53-letter-numeric codes (DC). DC was used for empirical study of formation of occupational and labor world pictures by psychologists. DC constitutes the integrated picture of the labor world using such categories of analysis as objects, aims, tools and conditions of labor. Six psychologists classified 2298 occupations using DC. The data analysis showed that all of DC category features were present in psychologists’ minds. Each psychologist appeared to have a unique combination of them called an individual picture of labor world. The most difference in the pictures formed by the psychologists’ was observed in their labor typologies and in the way they clustered labor tools. The individual choices of clusters of aims and clusters of conditions of work demonstrated similarity.