Michael R. Sheehy is Director of Scholarship at the Contemplative Sciences Center and Research Assistant Professor in Tibetan Buddhist Studies at the University of Virginia. Klaus-Dieter Mathes is Professor of Tibetan and Buddhist Studies at the University of Vienna, Austria. His books include A Direct Path to the Buddha Within: Gö Lotsāwa's Mahāmudrā Interpretation of the Ratnagotravibhāga and A Fine Blend of Mahāmudrā and Madhyamaka: Maitrīpa's Collection of Texts on Non-conceptual Realization (Amanasikāra).

Presents a new vision of the Buddhist history and philosophy of emptiness in Tibet.