I agree with the replies that have been posted thusfar.
The best two books on low limit holdem are by LOU KREIGER and LEE JONES. I also like KREIGER's "Poker For Dummies" as it's an easy way to digest increasingly complex strategies a chapter at a time.
MIKE CARO's Book of Tells is interesting, but not the right book for a novice player. It's fine once you understand basic fundamentals, but it can also be distracting if you spend mor time thinking about its contents versus more important strategic data in the other books.
I also like KEN WARREN book, although it's flawed. It has enough good material presented in an easy to understand way that it's well worth the price.
A hint: Go into Borders and sit there and read several books, and find one that you are most comfortable with. I own just about every poker book written, and keep them all, but a cheaper way to learn is to buy a couple of the primers, then visit the bookstore repeatedly and use it like a library.
Good luck,
Nolan
PS -- The STU UNGAR biography is just wrapping up the second draft -- due on Jan. 5 to Simon and Schuster. The new title (I changed it) is ACE HIGH. THanks for the question, Phil.