Abstract
Soviet library science has entered into a new stage of development after the Stalin era in the late 1950s. Central figure of its theory formation was O. S. Chubarian, Deputy Director of the Lenin State Library, and the author of government approved textbook General Library Science (3d ed. 1976). He revived Lenin's theory of Partiinost' ideology of library science and one total system of libraries in the country. In 1960s Libraries in the Soviet Union has developed a great deal, and the new problems occurred, so that a new theory according the Communist Party decrees were necessary in the library scene. Chubarian had been one of the leading theorists in the 1960 s and 1970s.