Mary K Greer rocks because she has written numerous books on the tarot, and also wrote a book called "Women of the Golden Dawn", which is a fascinating account of some of the intimate history behind that organization, focusing on the women who were in it during its formation. The current books that she has produced are great on many levels - they are very thorough and clear, good for beginners, and offer new ways of looking at the cards, new ways of interpreting and reading the cards, and new ways of exploring and expanding your understanding of the cards. They are very refreshing, and great for newbies.