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.