At the Department of Manuscripts and Documents, IOM RAS, the monograph by Dr Alexander V. Zorin, The Ancient Tibetan Collection of Ritualistic Texts on the Cults of Mahakala and Vishnu Narasimha [Древний тибетский сборник ритуальных текстов по культам Махакалы и Вишну-Нарасимхи], will be discussed.