A file of reports, correspondence and memoranda concerning the evolution of worldwide Communism. The documents contain a selection of reports on the trends within communist propaganda dating from February and March 1950, featuring nation-by-nation breakdowns on the activities of communist organisations and a discussion of how Britain should respond to these trends; a broader retrospective summary of the trends in communist propaganda in 1949, featuring an analysis on new methods and changes; and a report on Sovietization and purges in Eastern Europe. Other documents discuss the exchange rate of the rouble, touching on the wider strength of the Soviet economy; the strengthening of Soviet control in Eastern Europe, featuring an interpretation of the purges; and an address by Dean Acheson, the United States Secretary of State, on the developing tensions between the United States and the Soviet Union.