The monograph is distinguished by thoroughness and scientific integrity. Having preceded the presentation of the material by characterizing the paleographic features of the vast spaces of Eastern Europe, the author considers in detail the daily life of our distant ancestors. The emphasis is placed on the economic activities of people of the Mesolithic era - hunting, gathering, fishing, processing and extraction of various materials. How did they build their homes, solve transport problems, what was their annual economic cycle? The answers to all these questions can be found in the book. The monograph is provided with very informative illustrative material.