"Bohdan Khmelnytskyi" is a book written by the author Ivan Lysiak-Rudnytskyi, which tells about the life and activities of one of the most famous hetmans of the Ukrainian Cossacks. This book depicts the complex history of Ukraine in the 17th century, the period of the uprising against the Polish nobility and the struggle for independence. The author investigates in detail the origin, personality and political beliefs of Bohdan Khmelnytskyi, revealing his inner world and motivations. This book is a fascinating in-depth portrait of an outstanding figure in Ukrainian history who left an immeasurable mark in the nation's collective memory.