Glenn Mullin is the author of over thirty books on Tibetan Buddhism, many of which have been translated into a dozen foreign languages. His earlier titles focus on the lives and works of the early Dalai Lamas. Other titles of his elucidate practice traditions such as Lam Rim, Lojong, the Six Yogas of Naropa, Kalachakra, and so forth. He has been an international teacher of Tantric Buddhist meditation for the past thirty years. Glenn lived in Dharamsala, India, for fifteen years. There he studied under twenty-five of the greatest masters of Tibet, including the Dalai Lama and his two main gurus, Ling Rimpoche and Trijang Rimpoche.

Jonas Over is an international Buddhist meditation teacher authorized by Lama Glenn Mullin and Lama Jhampa Shaneman to transmit and teach Vajrayana Buddhism. He has received continuous empowerments and transmissions since 2002 and has trained extensively in the Vajrayana traditions, completing the full Ngondro foundations and qualifying retreats in major Tantras including Chakrasamvara, Guhyasamaja, Vajrayogini, Yamantaka, Hayagriva, and Kalachakra. Alongside his Buddhist studies, he has completed teacher trainings in Breathwork, Yoga, and Qi Gong, from which he developed the Energy Flow Method. Through Vajra Mandala, he teaches meditation, retreats, and Vajrayana practice while also hosting teachings with respected Buddhist masters from different lineages.