Encyclopedia "Russian presence in Italy in the first half of the twentieth century" is designed to recreate a detailed picture of the Italian era in the fate of the first wave of Russian emigration, to restore the forgotten pages of the life of the Russian community, including its interaction with Italian society and culture. Thanks to the encyclopedia compiled by famous Italian Slavic scholars, the real picture of the existence of the "Russian world" in Italy, its influence on the cultural and socio-political life of the country, as well as on pan-European emigration, becomes clear.