Mahayana Tantra by Penguin

A practitioner of the Mahayana Buddhist Tantra uses his intellect and moral discipline to attain Buddhahood, the highest state of existence. How to achieve this state was first shown by the Buddha and, after him, by various incarnations of Indian and Tibetan gurus such as the Dalai Lama. The author gives a detailed account of the moral, ethical and philosophical basis of Buddhist Tantra.