The article is dedicated to the 75th anniversary of Doctor of Philology, Professor, Academician of the Tatarstan Academy of Sciences, Honoured Scholar of the Republic of Tatarstan and the Russian Federation, the member of the Union of Writers of Russia and the Presidium of the Union of Local Historians of Russia – Nail Mansurovich Valeev. It describes him as an outstanding Russian humanities scholar, literary critic, art critic, historian, local historian, cultural studies scholar, major organiser of scientific events and a public official. His unique and resonant academic work, significant and conceptual projects contribute to the prestige of our republic and country. Over the three decades of his life in the city of Elabuga, he wrote hundreds of articles and ten books about the historical and cultural heritage of Elabuga, about the fate of Elabuga merchants-benefactors. His enormous work on organising a purposeful study of the history of the city led to the recognition of Elabuga as one of the tourist-attractive cities of Russia. Regularly held international scientific conferences devoted to the study of the fate of the merchant dynasties of the city and the creative heritage of the forgotten classic of Russian literature D.I. Stakheev, attracted the attention of scholars from all over Russia and around the world, as well as the descendants of the merchant dynasties of the Stakheevs from Australia, Switzerland, Great Britain, France, etc. to the rich history of the city. Huge work was carried out by N.M. Valeev to draw the attention of the Republic of Tatarstan Academy of Sciences academics and the scholars of the Federal Research Center “Kazan Scientific Center of the Russian Academy of Sciences” to the study and preservation of the historical and cultural heritage of the city of Chistopol. Academic works of N.M. Valeev about the life of Kazan art of the twentieth century, the Literary Chistopol encyclopedia, the monograph Boris Pasternak in Chistopol. To the origins of the “Doctor Zhivago” novel and other works caused a wide resonance around the country and the world, attracted the attention of specialists to the rich history of Tatarstan and Chistopol.