Ars Tibetica and Mongolica with an appendix on Ars Buddhica Nova is the third of Andrea Loseries's Omnibus after Ethnologia Tibetica (2018) and Buddhica Tibetica (2020). It contains the selective writings of the author on Tibetan and Mongolian arts and iconography composed over three decades, with an appendix of the author's interpretation of three examples of modern art inspired by Buddhist outer and inner scenarios. The first chapter Ars Tibetica presents detailed studies and analysis of rare Tibetan Thanka paintings, based on authentic textual studies, describing the iconography and symbolism of the respective deities in their Mandalas, namely the Mandala of the Great Lord Heruka (Che mchog Heruka), an ethno-art historical study on Ganapati, a rare presentation of Avalokitesvara as Hari-Hari-Hari Vahana, and an artistically singular painting of the Three Mahakala Brothers. The article “Buddhist Images of the Feminine” analyzes female deities according to the Trikaya system. A comparative study on Simhamukha and Durga is followed by a chapter on lions as Buddhist symbols. The second part Ars Mongolica introduces stylistics and characteristics of Buddhist Mongolian painting styles, followed by a tribute to the great Mongolian religious leader and artist Zanabazar (1635-1723) and his magnificent sculptures, tracing their stylistic affinity to Pala art. They are followed by iconographic analysis of two rare 18th century Mongolian scroll paintings, one of the grand Bogda Lama, the successor of Zanabazar, and the “Twelve Tenma Goddesses”.