The conceptual and methodological contributions of Marxist aesthetics from Eastern European countries like Hungary, Yugoslavia, Poland, Czechoslovakia, Bulgaria, Romania, and East Germany were productive and significant despite various hurdles faced concerning institutionalization, legitimization and differing theoretical abuses. In its mode of inquiry and discursive practices, Eastern European Marxist aesthetics is both similar and dissimilar to its Western, Soviet, Russian and Chinese counterparts. The specificity here is the function of a unique geographical and socio-historical context, as well as interaction with other contemporary paradigms of thought. The innovative impulses of Eastern European Marxist aesthetics affected six scholarly domains: aesthetics of praxis, theory of realism, critique of modernity, semiotics, theory of genre and cultural theory. This paper provides a general survey of the intellectual achievements of Eastern European Marxist aesthetics across these six domains and will show how this theoretical tradition has influenced the modern history of ideas.