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.