There r several good books available to the aspiring poker player. There r some that r better to start with than others. As ur skill set increases, u should be reading more & studying more. Here is a list of books that I think will benefit any beginner to intermediate level player.
A great first read would be Barry Greenstein is Ace on the River. The book has a lot of great information as well as suggestions on etiquette. Barry Greenstein is known as the Robin Hood of poker & is credited as being one of the top no limit hold 'em players in the world.
After reading this book, I would recommend Phil Gordon is suite of books. The book titles are: Poker: The Real Deal, Phil Gordon is Little Green Book, & Phil Gordon is Little Blue Book. The first book is somewhat entertaining, but looking back, I think u would be just fine skipping to the Green Book first. The Little Green Book not only incorporates the mathematics of poker, but also includes some simple methodology anyone can utilize to better their game. Once u have an understanding of these concepts u can move on to the Little Blue Book which will go into further detail the complexities of No Limit Texas Hold'em as well as hand analysis. You can purchase Phil is books autographed & a donation will go to cancer. Do a ! search for Phil Gordon.
David Sklansky is The Theory of Poker is also another great poker theory-related read. You can get a great overall view of the general concepts of poker as well as some advanced techniques. This book is certain to improve ur game.
Finally, Caro is Book of Poker Tells is an excellent reference. Although in the more advanced environments this book may not be as applicable, to devastate ur home games & other beginning players this is an excellent read. The book focuses primarily on observing ''tells'' which is a necessary addition to any poker player is arsenal.
Once u get past these books, here r some other good reads:
Harrington on Hold'em Volumes I, II, & III
Power Hold'em Strategy by Daniel Negraneau
Every Hand Revealed by Gus Hansen
Good luck!