The Communist Manifesto was a one-party state under the rule of the Communist Party of the Soviet Union (CPSU). Unlike their mass-based counterparts of the Second International, the CPSU and other Leninist parties like it in the Third International expected their members to know the classic works of Marx, Engels and Lenin. Further, party leaders were expected to base their policy decisions on Marxist-Leninist ideology. Therefore works such as the "Manifesto" were required reading for the party rank-and-file. Therefore the widespread dissemination of Marx and Engels' works became an important policy objective; backed by a sovereign state, the CPSU had relatively inexhaustible resources
The Communist Manifesto were Spanish editions in Latin America. This uneven geographical spread in the "Manifesto"s popularity reflected the development of socialist movements in a particular region as well as the popularity of Marxist variety of socialism there. There was not always a strong correlation between a social-democratic party's strength and the "Manifesto"s popularity in that country. For instance, the German SPD printed only a few thousand copies of the "Communist Manifesto" every year, but a few hundred thousand copies of the "Erfurt Programme". Further, the mass-based social-democratic parties of the Second International did not require their rank and file to be well-versed