The lecture will focus on several aspects which are encompassed by the Biblioteka XX vek as a source for studying critical approaches to school and education after 1968: the books of the series with examples of the theoretical and philosophical influences on analysis of ideological and political functions of education; books and informal education in Yugoslavia 1970–1990, a step out from compulsory literature; education with Biblioteka XX vek, readers’ experiences; the place of social and humanistic literature, including Biblioteka XX vek, in education towards democracy, as well as the contribution of this literature to the fight against nationalisms and new fascism.