For the first time in Russian, the capital work "History of the Soviet Union" was published (in two volumes), written by one of the most authoritative specialists in the development of socialist countries, Giuseppe Boff. The Italian scientist gives a comprehensive analysis of the history of the Soviet state. The work is unique in world historiography in the completeness of the coverage of events and the originality of the approach. The author reveals the difficulties of the formation of Soviet power and at the same time shows the complete unacceptability of the Stalinist model of socialism.