Taking the Path of Zen — by Robert Aitken
This work presents the practice, lifestyle, rationale, and ideology of Zen Buddhism with remarkable clarity.
The Practice of Mahamudra — The Teachings of His Holiness the Drikung Kyabgon Chetsang Rinpoche
Explanation of the five stages of Mahamudra. Probably the clearest presentation of Mahamudra meditation practice available in English.