Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Concise Theory from One of the Masters

Although only 33 pages from start to finish, this book has more useful, practical information on Tarot than any other that I have seen. Mathers plainly lays out a system for Tarot reading, including some simple spreads that readers can use. I believe that this book should be read and mastered before any advanced work with Mathers' instruction in Book T from The Golden Dawn by Israel Regardie. Mathers' Tarot is a little-known, under-rated, excellent text.