The combination in this volume of two books published at different times (“Terrorism and Communism”) and “Between Imperialism and Revolution”) is justified by the fact that both books are devoted to the same main topic, and the second, written in the name of an independent goal (defense of our policy towards Menshevik Georgia), is at the same time only a more concrete illustration of the main provisions of the first book using a particular historical example. In both works, the main issues of the revolution are closely intertwined with the topic of the political day, with specific military, political and economic measures . Minor errors in assessments or partial violations of perspective are completely natural and completely inevitable. It would be wrong to correct them retroactively, if only because particular mistakes reflected certain stages of our Soviet work and party thought. The main provisions of the book retain, from my point of view, their entire force today. Since the first book deals with the methods of our economic development during the period of war communism, I advised the publishing house to include in the publication, as an appendix, my report at the IV Congress of the Comintern on the new economic policy of Soviet power. In this way, those chapters of the book “Terrorism and Communism” that are devoted to the economy from the point of view of our experience of 1919 - 1920 are introduced into the necessary perspective.