Politizdat

Politizdat was the primary party publishing house of the Central Committee of the Communist Party of the Soviet Union (CPSU). It held a dominant position in the production and dissemination of ideological, Marxist-Leninist, and propagandistic literature throughout much of the Soviet era. In quantitative terms, Politizdat was consistently the most "mass" publisher in the Soviet Union, with print runs that far outstripped those of other publishing houses. As the official organ for political literature, Politizdat published key party documents, collected works of leaders, theoretical treatises, and biographical materials designed to educate and mobilize the Soviet populace. Its output formed a cornerstone of state propaganda.

From the Wikipedia article “Politizdat”, licensed under CC BY-SA 4.0.

Politizdat is no longer an active publisher (defunct since 1991). Its books may still be in print through successor companies or available second-hand and in libraries.