The monograph of the famous Russian scientist - archaeologist and historian - Gleb Sergeevich Lebedev “The Viking Age in Northern Europe and Rus'” is a fundamental study of the cultural, historical and socio-economic aspects of the mysterious historical phenomenon. Using a wide range of textual sources, archaeological and ethnographic materials, the author creates an encyclopedia of the Viking Age. Material and spiritual culture of Scandinavia in the 9th–11th centuries. explored in the context of the history of the formation of states; the formation of the mechanisms of power of the kings, the distribution of material values; development of trade, navigation, crafts; military expansion from plunder to conquest; external influence, which culminated in the Christianization of Northern Europe. A separate section is devoted to Russian-Scandinavian relations and the role of the Viking-Varangians in the formation of Rus' - a state embodied in historical reality, and a phenomenon of national identity. Rich illustrative material, clarity and consistency in the presentation of ideas, as well as a fascinating narrative will attract the attention of not only specialists - historians, archaeologists, ethnographers, but also a wide range of readers, for whom the connection between the “Viking problem” and the “Varangian question” is obvious - the key issue Russian history.