Book
Introduction to Tantra Śāstra
A 1952 abridgement repackaging Woodroffe's introductory matter to the Mahanirvana Tantra into a standalone primer on the principles of Hindu Tantric scripture.
Where to find it
- Introduction to Tantra Shastra — Woodroffe, John George, Sir, 1865-1936 (Internet Archive, borrow)
- Introduction to Tantra Sastra, 1956 Ganesh & Co. — Sir John Woodroffe (Internet Archive, full text)
- Introduction to Tantra Shastra by Sir John Woodroffe, 1980, Madras, Ganesh & Company (Internet Archive)
- Introduction to Tantra-Sastra by Sir John Woodroffe — free full-text PDF (holybooks.com)