The Healing Waves Tarot is currently out of print after a limited run, and I was after it for aaaaaages before I found a secondhand copy that wasn’t gougingly expensive (it was still pretty pricey though!). It’s definitely worth snapping up if you can find a reasonably priced secondhand copy. Otherwise you can join me in hoping that the creator, Nawan Junhasiri, does a second print run and/or works with a mass market publisher to release a prêt-à-tarot version. Unfortunately the guide book is only available as a passcode locked pdf, and as I bought it secondhand I didn’t have the password until some kind soul on Insta took pity…