The Secret Oral Teachings in Tibetan Buddhist Sects

This is an account of the Madhyamika (Middle Way) school of Buddhism, a method of mediation and enlightenment that was developed by the great Indian teacher Nagarjuna. In a collaboration between the Frenchwoman Alexandra David-Neel and her friend, the Tibetan lama Aphur Yongden, these teaching are presented clearly and elegantly, intended for the layman who seeks a way to practice and experience the realization of oneness with all existence.

…this is the most direct, no-nonsense, and down-to-earth explanation of Mahayana Buddhism that has been written. Specifically, it is a wonderfully lucid account of the Middle Way method of enlightenment worked out by the great Indian sage Nagarjuna. -Alan Watts, The Book