Yongdzin Lopon Tenzin Namdak Rinpoche is revered as one of Tibet's greatest masters, and the most important living figure in the Bon religion. In addition to being a spiritual teacher he has also collaborated extensively with many international scholars, who have approached him for his unsurpassed knowledge of Bon doctrine and history. The thirty-three contributions that make up this volume, offered in celebration of Yongdzin Rinpoche's centenary, reflect the multiple registers of the authors' engagement with him: personal reflections, photo-essays, translations of Bonpo works - including some of his own teachings and compositions - and scholarly studies, brought together as a tribute to an extraordinary source of both knowledge and wisdom.