Particular attention is paid to the following key aspects: Economic crisis of 1930: The author explains in detail the causes of the Great Depression, its consequences for the world economy, continuous bankruptcies, growth of unemployment and aggravation of social conflicts. Description of how the economic crisis became a catalyst for mass protests, strikes and revolutionary attempts in different countries, including the Soviet Union, where, despite the totalitarian regime, there were attempts of social change. The Psychology of the Masses and the Revolutionary Spirit: How Crisis and Poverty Influenced People’s Worldview, Making Them Look Out Through Revolutionary Ideas and Protest Actions. The role of the Soviet Union in the world context: How the Soviet Union used the economic crisis to advance its ideological goals, how industrialization and collectivization took place, and how these processes affected domestic politics. The changes in the global balance of power, as well as the impact of the crisis on the development of nationalist and socialist movements in different countries. There are stamps of libraries