Probably, there is no more controversial personality in Ukrainian history, who periodically causes irreconcilable debate battles among ordinary people and connoisseurs. The book "Ivan Mazepa" by T. Tairova-Yakovleva became another reason for such a surge. This document-based study was called "the first true book in Russia about Hetman Ivan Mazepa." Not a traitor to the empire and the tsar, but an extraordinary personality, gifted in many ways, of extraordinary intelligence, strength of spirit and patriotic self-awareness. This book is a Ukrainian translation of the same, popular one, revised by the author. T. Tairova-Yakovleva addresses the reader with an introductory word, something has changed over the years in "mazepology" itself - some facts and statements have been corrected and supplemented by the author. All this gives the book even greater scientific value and depth, revealing to us all new Mazepa...