Encyclopedia of Buddhist Tantra (5 Vols.)
by Sadhu Santideva

This is probably the first and the only such Encyclopaedia available on Buddhist Tantra who guides the reader towards a greater understanding of the secrets, explaining various important and key facets in language simple enough for a general reader to understand the mystery of Buddhist Tantras and clear enough for a student to provoke him to further research on the subject. It will be welcomed by all classes of readers--general, researchers, teachers, and students alike. It will particularly be interesting for the western readers and it provides him an opportunity to get important information on this branch of Buddhist philosophy at one place.