Dzogchen is an ancient spiritual teaching developed in Tibet within the Tibetan Buddhist tradition. It does not belong to a school or religious system. Rather, it is the inner knowledge that Tibetan masters have transmitted without being limited by sectarianism. The word "Dzogchen", meaning "great perfection", actually refers to the true inherent nature of all beings, their primordial state, which is free from all limitations and conditioning. The Master's transmission of this state of knowledge lies at the very heart of the Dzogchen teachings. The Dzogchen tradition has been passed from master to student in an unbroken lineage over the centuries, right up to the present day. Due to its direct and uncomplicated approach, it transcends cultural boundaries making it accessible to all nationalities regardless of their spiritual background. Chögyal Namkhai Norbu, as one of the exponents of this ancient tradition, is considered an influential figure of undisputed prestige, both in the West and also in Tibet.

The following books provide a good overview on Dzogchen:

- Chogyal Namkhai Norbu: The Crystal and the Way of Light: Sutra, Tantra, and Dzogchen, Snow Lion 1999

- Chogyal Namkhai Norbu: Birth, Life and Death, Shang Shung Institute 2008)

The books can be obtained from the following online stores:

- Shang Shung Publications

- Garuda Books

- Amazon