Studying the role of Jews in the culture of Russia has become a tradition. Special literature on the participation of Jews in the formation and development of Russian culture in exile has not yet developed. Our books fill that gap. The fourth volume of our publication completes the main part of a series of books telling about the contribution of Jews to the culture of the Russian Diaspora in the period 1919-1939. (I and II volumes) and 1939-1960. (III and IV volumes).