The book, based on extensive factual material, analyzes the discursive features of Soviet culture of the 1920–1950s - the effectiveness of the “key concepts” of ideology in the communicative techniques of scientific persuasion and artistic expression. The author's main attention is focused on thematic and genre preferences in the field of folklore and “folk art”. The author gives his answers to the questions: on what rhetorical, socio-psychological and institutional foundations do socialist realism, epic (and quasi-epic), fairy tale (and “Soviet fabulousness”), the pathos of proletarian vigilance and the popularity of lullabies, didactics of rationality and barely Isn’t it a magical belief in the “conspiracy power” of words.