78 Degrees of Wisdom, hands down. It took me a couple of times to get through it and I even gave it away once before I rebought it and was able to get my head around it.
What I like about 78 Degrees is that is focus and specific. It isn't for everyone but Tarot Wisdom left me underwhelmed by how broad it seemed and almost generic (though that isn't a great word for it either).
I think I may have been expecting too much from the book and it likely serves the purpose she intended.
Allan