His book publications include a translation of the Bhagavadgītā (Gammelmark 2009) and an introduction to Sanskrit in two volumes called Gudernes Sprog (Language of the Gods: Classical Sanskrit in Danish, Univers 2013, 2014). He is the editor of Goddess Traditions in Tantric Hinduism: History, Practice and Doctrine (Routledge 2015) and co-author on a Danish introduction to Hinduism with a focus on Varanasi (Systime, 2015). He is currently working on a Danish translation of the Haṭhapradīpikā, and an English translation and critical edition of the Netratantra in two volumes for the Routledge Tantric Studies series, as well as a volume on Models of the Human in Tantric Hinduism. He has written a number of articles in Danish, German, and English on goddess traditions, asceticism, yoga and meditation.