The Institute’s research work depicts the birth and spread of communist ideology and its different manifestations as a state ideology as the result of seizing power, as underground subversive activity aimed at the violent seizure of power and the establishment of the so-called dictatorship of the proletariat, and also as legal political activity in democratic societies. The objects of research are the methods of communist propaganda for finding supporters in the era of underground subversive activity as well as in communist regimes, and the means for securing communist rule. An important field of research is the influence of communist ideology and the legacy of the rule of communist regimes in democratic societies in the 21st century.