I recommend a blank journal also, as many here do.
A Rider Waite deck can't hurt, either.
But if you want to learn to read the cards and you really must have a book to do it with, I heartily suggest The 2-Hour Tarot Tutor by Wilma Carroll. I stumbled on the book by accident but I wish I'd had it from the start.
Another book I recommend is Secret Language of Tarot by the Ruth and Wald Amberstone.
I respect Mary Greer's books tremendously but they can be overwhelming for a new person. Same with Rachel Pollack's books. 21 Ways to Read a Tarot Card by Mary Greer is good, though.
James Rickleff wrote Tarot Tells the Tale and that's a good one for a little while later on.
All the ones I've mentioned are workbooks as well as wonderful sources of information for a new person.