An illuminating gateway to Indian philosophy and its explication in Tibet. Among the many works produced in the rich philosophical tradition of India's classical age, few have had more impact than Dharmakirti's Commentary on Valid Cognition (Pramanavarttika). Composed in India in the seventh century, it became the cornerstone for the study of logic and epistemology in the Tibetan Buddhist tradition. An important addition to any collection for the Sakya practitioner, Light of Samantabhadra translates the work of one of the premier scholars of the Sakya school, Gorampa Sonam Seng