The book is dedicated to the life and work of Ivan Fedorovich Kruzenshtern, the great Russian navigator. Under his command, the ships Nadezhda and Neva carried the Russian flag around the world and opened a new era in the exploration of the World Ocean. I.F. Kruzenshtern was attracted by the main problems of studying the Arctic and Antarctic. According to his projects, many polar expeditions were equipped. He was the initiator of the resumption of the search for the Northern Sea Route from the Pacific Ocean to the Atlantic along the northern coast of America. His work on hydrography and cartography of the World Ocean had a huge impact on contemporaries and on the formation of world geography. The book is designed for a wide range of readers.