The book "The Age of the Crusades" edited by E. Lavissa and A. Rambo is a fundamental work dedicated to one of the most significant periods of medieval history. The first edition in Russian was published in 1897, and in 1914 the publishing house M. and S. Sabashnikovykh in Moscow published the second edition in two parts. The translation was done by M. O. Gershenzonom, with a preface by Professor A. N. Savina. Structure and content The book covers a wide range of topics related to the era of the Crusades, including: The emergence of the feudal order until the end of the XIII century. Controversy over investment between the papacy and the empire (1049-1122) Frederick Barbarossa and his successors. The development of the French kingdom (1108-1270). The liberation of cities, the formation of communes and the bourgeoisie. Commerce and Industry in the Middle Ages. Western civilization in the XII and XIII centuries. The formation of the English nation and the Great Charter (1087-1272). The history of the Iberian, Scandinavian and Eastern European states during this period. The coups in Asia, including the history of the turks, China, Iran, and Central Asia until the end of the XIII century. Collectible value The 1914 edition is of particular value to collectors and history researchers. The preservation of the original soft publishing cover, the presence of seals and marks of libraries emphasize its historical significance. The acquisition of this publication will be a valuable addition for collectors and researchers interested in the history of the Middle Ages and the Crusades.