History of Buddhism

Mahayana Buddhism: The Doctrinal Foundations

The Gospel of Philip: Jesus, Mary Magdalene, and the Gnosis of Sacred Union

By Jean-Yves Leloup, Jacob Needleman

Tantra: The Indian Cult of Ecstasy

By Philip Rawson

Meditation: The Simple and Practical Way to Begin and Deepen Meditation

By Patrick Harbula

The History of Philosophy

By A. C. Grayling