Based on several endorsements here, I'll be getting both of the Anthony Louis books. Not because I really need them, but because I occasionally appreciate a nudge of inspiration to keep going forward.
I'm on a roll with Marcus Katz books... Kindle Unlimited gives access to quite a number of interesting tarot books. At the moment I'm reading The Magician's Kabbalah.
I am currently reading The Cloud upon the Sanctuary by Karl von Eckartshausen. It is not a "Tarot" book as such, but Eckartshausen strongly influenced A. E. Waite's mystical philosophy, which is reflected in the RWS.
I've just finished Complete Idiots guide to Tarot Spreads which I borrowed from the library and actually quite enjoyed. I'm now getting stuck into Holistic Tarot...after that I think I'll reread Meditations on the Tarot and this time make notes in my journal...