Over the years, numerous books on the topic of TANTRA have been published, however the most of these are brief summaries. These narratives typically draw generalisations that are meant to disparage it. By rigorously adhering to the facts, Sir John Woodroffe, also known as Arthur Avalon, was able to eliminate all the criticism by focusing entirely on one subject. Any Tantra learner must read the two-volume book "Principles of Tantra," which sums everything up.