The book includes the most important works of L.N. Gumilyov: “From Rus' to Russia”, “The End and the Beginning Again”, “Ethnogenesis and the Biosphere of the Earth”. In the first book, the famous Russian historian and geographer examines the history of Russia, which is closely intertwined with the history of neighboring states and tribes. The combination of traditional methods of historical research with deep geographical analysis allowed the author to create a holistic picture of the development of the Russian state in the context of world history. “The End and the Beginning Again” is a series of lectures on ethnic studies given by the author in the 1980s. The provisions of the unique theory of passionarity, created by the scientist, are presented in an entertaining form and illustrated with examples from the life of the peoples of Antiquity and the Middle Ages. And the study “Ethnogenesis and the Biosphere of the Earth” is devoted to identifying patterns of interaction between ethnic groups and landscapes in history. Each reader will find in the monumental work of the brilliant Russian historian , geographer and philosopher L.N. Gumilyov, what will be interesting to him. The publishing layout is saved in a4.pdf format.