Palden Sherab and his brother Tsewang Dongyal are two Rinpoche's who have produced a wonderful set of teachings on many Buddhist topics. There books are extremely clear and directed to practitioners.

"Khenchen Palden Sherab Rinpoche is the author of works on Tibetan, grammar, poetry, philosophy, and history. Several of his books are used in courses at the Central Institute of Higher Tibetan Studies. He has taught in Tibet, India, Nepal, England, France, Belgium, Australia, Canada, Russia, Puerto Rico, and throughout the United States. Khenchen Rinpoche is considered one of the greatest living scholars and meditation masters of Tibetan Nyingma Buddhism."