A friend who happened to have a Jodorowsky-Camoin deck was what recently rekindled my interest in Tarot, which had lain dormant for about 20 years. I found Jodorowsky's book quite useful, too, especially where the pip cards are concerned, although I have to disagree with him on some of his interpretations of the trumps and although I find the few attempts at making historical claims in the book pretty dubious. I also found myself wondering whether some of the vocabulary used in the book was original to the French edition of the book or was a translation error (Pentacles rather than coins, major and minor arcana instead of trumps and pips, etc.) Still, I found it a lot more useful than a lot of books that come out with a very dogmatic view and that focus on such unhelpful (to me anyway) things as kabalistic correspondences or whatever. Reading it gave me just enough background that I feel a kind of confidence in my attempts at reading using the deck that I had not had the last time I tried to understand Tarot decades ago.