The “Doctor's Diary” presents the impressions of a participant in international assistance to the Armenian people during the days of their tragedy caused by the largest earthquake on December 7, 1988. It contains descriptions of surgical and therapeutic pathology in the victims. The recordings have professional, journalistic and artistic significance, assessing and restoring in our memory the picture of the tragedy of the people from the point of view of a doctor, humanist, internationalist. "A Doctor's Diary" may be of interest to doctors, disaster medicine specialists, historians and a wide range of readers.