The review characterizesthemain provisions ofthe second, corrected and supplemented edition of the book by P. Kabytov and N. Fedorova, devoted to the description of the life, research and teaching activities of professor I. M. Ionenko. The authors of reviewed book, former students and graduate students of Ionenko talk about his formation as a historian, his achievements as a historian and social activities. Personality of the Teacher and mentor, who taught his students a professional approach to historical reseaches, is revealed in the context of the time in which he lived and worked. The book emphasized that when preparing young historians, it is not only to equip them with the tools of historical research, but also to establish a spiritual connection between the mentor and his students. The authors managed to convey the charm of personality of their Teacher, who taught them not only to extract and summarise information, but also to arrange it in the system of moral coordinates. In the review is concluded that the release of the second edition of the book indicates its necessity and demand.