The Arctic region requires a high-quality knowledge of its nature. “Tundra Studies. Terrestrial Ecosystems of the Arctic” by O.I. Sumina, released in 2024, is the first and so far the only textbook on this extreme ly important subject. It considers specific properties of Arctic terrestrial ecosystems, discusses historical processes of their formation and transformation under human influence. The textbook can be useful in the educational process in the fields of ecology, geography, geobotany, nature and resource management.