Five years ago the Comintern loomed once again as a spectre on the European horizon with the founding in Poland, September 1947, of the Information Bureau of the Communist Parties of the USSR, Bulgaria, Hungary, Rumania, Poland, Czechoslovakia, Yugoslavia (expelled June 1948), France, and Italy. It has since become both fashionable and convenient to identify the “Cominform” with all aspects of international Communist activity, ranging from the most general of policy directives to an isolated Communist-led strike. The indiscriminate identification of “Cominform” with international Communist activity provides the layman with a convenient stereotype which spares him the trouble of further inquiry. For the student of Communism, however, this lack of precision merely results in obscuring the actual role of the Cominform, as it is known to us, and more particularly, its function within the configuration of various covert and overt instrumentalities of the international Communist movement. To speak, for example, of a “Cominform” policy of collectivization or of a “Cominform” purge trial in the Balkans, or to suggest by “Cominform” the whole web of controls of national Communist parties maintained by the USSR is to ascribe a role and importance to the Cominform that it simply does not have. For without minimizing the importance of the function the Cominform has come to discharge, it may be said that its role is essentially that of a central, but by no means the most important, propaganda instrument of the international Communist movement, designed primarily to provide public guidance and information to the leadership of various national Communist parties. Thus Pravda and the USSR radio broadcasts furnish daily guidance to the international Communist movement, and the World Federation of Trade Unions is continuously engaged in attempting to bring trade union activity in line with Communist policy.