This encyclopedic reference book provides data on more than a thousand Russian warships and auxiliary vessels. It was from them that the fleet through which Russia waged a naval war with Japan in 1904-1905, with Germany and Turkey in 1914-1917 consisted. For the first time in Russian reference literature, Russian ships and vessels are distributed here in classes, types and series, and not in naval theaters. A significant part of 280 side projections is also published for the first time. Significantly clarified information about the historical fate of ships, their tactical and technical characteristics.