I started reading the Rider-Waite deck when I was 8 and this is the first guide to tarot I ever read. To this day, it's the only book I consistently refer to. For my money this is the only guide to the tarot that both beginners and seasoned readers can learn from.
I first bought a copy of this book back in 1989, and I've had one ever since. This is the book I learned to read the cards with. For a beginner this is a very detailed, and, as the title says, complete guide to reading Tarot cards. The book uses the Rider-Waite deck for illustations, but one can use the meanings and methods of readings with any deck of Tarot cards. If you want to learn, this is an excellent guide. If you already do read the cards, and you don't have this book, pick it up, because either way, it is an excellent reference work on Tarot cards.