Paul Foster Case's The Tarot: A Key to the Wisdom of the Ages is not a book you want to check out from the library, as I have. It's a fairly straight-forward, as-simple-as-you-can get analysis of the major trumps of the Tarot, looking at the symbolism of the pictures, as well as the kabbalistic meanings of each card. The book only takes 3-6 pages for each card, but those pages are packed with information.
I come to this book with some understanding of the Tarot symbolism, and a very rudimentary understanding of the Kabbalah. After reading this, I feel like I understand the Kabbalah a little more, and I think if I had come to it with a greater understanding of that, I would have learned more about the Tarot symbolism. And that's what I find most interesting about this book: you could use it as a student of Tarot or a student of Kabbalah to learn about the other.
As I said, if you're going to read this book, you should buy it. There's a lot of information, so a single reading isn't going to do that much for you. It's really a book to refer back to as you feel you've become more skilled in Tarot reading.
My only real problems with this book are that 1) it only takes a couple of pages to deal with ALL of the minor and court cards, and 2) the divination method was pretty complicated, and this should have been given more pages. It's really written for someone with a greater knowledge of the Kabbalah and the zodiac than I have.
Overall, The Tarot is a fascinating and enjoyable read that really requires serious study to get the full advantage of it.