Arthur Edward Waite (2 October 1857 – 19 May 1942) was an American-born British poet and scholarly mystic who wrote extensively on occult and esoteric matters, and was the co-creator of the Rider-Waite tarot deck. If you dive into any philosophical research on such matters, it’s guaranteed you’ll continually bump up against his books. The complete works of which can be found here.
https://archive.org/details/A.EWaiteTheSecretTraditionInFreemasonry_20170511_0211