Nathan Yakovlevich Eidelman is a historian, literary critic, writer, publicist, whose contribution to Russian historiography of the 20th century can hardly be overestimated. He left a rich creative heritage - more than 20 books and numerous articles, essays, and reviews in periodicals. The main area of scientific interests of N. Ya. Eidelman was the history of Russian culture and social movements in the 18th-19th centuries. The books “Your Eighteenth Century” and “Your Nineteenth Century” tell about the most interesting events of Russian history: palace coups, the Pugachev rebellion, the development of Kamchatka and the Kuril Islands, the Patriotic War of 1812, the uprising on Senate Square in St. Petersburg, the abolition of serfdom, etc.; the heroes of these books are outstanding personalities of their time: Peter I, A.P. Hannibal, M.V. Lomonosov, N.I. Panin, A.N. Radishchev, A.S. Pushkin, A.I. Herzen, Decembrists... The book “The Edge of Centuries” is dedicated to the internal political life of Russia at the turn of the 18th-19th centuries. The focus is on the fate of Emperor Paul I, whose personality still causes conflicting assessments. The tragic death of the emperor, which changed the course of history, is shrouded in many legends. The circumstances of the conspiracy are examined in detail by N. Ya. Eidelman. The publishing layout of the book is saved in PDF A4 format.