Chögyal Namkhai Norbu, former Professor of Tibetan and Mongolian Language and Literature at the University of Naples L"Orientale, has dedicated his academic career to the study of Tibetan culture and has published a number of works, in particular, on its origin. In his findings, the cradle of Tibetan culture is to be looked for in the ancient realm of Zhang Zhung, which had been revered Mount Kailash as its center and heart, and in the Bon spiritual traditions which flourished within and spread from that Kingdom. The Light of Kailash, through meticulous selection and a critical use and analysis of a vast array of literary and often inedited sources, offers an open, daring, holistic, unbiased approach to the study of the cultural and spiritual heritage of Tibet, and to the understanding of the origin of this fascinating and endangered civilization.