Here are the books I suggest for reading. If you
are a starting player or even an experienced one these books are
sure to only improve your game. Books are from varies authors including
David Sklansky, Lee Jones, TJ Cloutier, and Doyle Brunson.
As of 2011 I have removed Super System and Little Green Book from the list of recommendations. They are outdated for the time. I would still recommend browsing through all the books at the local store as every book can teach you something. The game has changed over the years to where those strategies don't work as well as they used to.
Beginning Players: I recommend both Harrington Books to start with. It lays a solid tight foundation to expand from there.
Struggling Players: If you are a struggling player, with no limit, I highly recommend getting the following books from the below list. Read professional NL Vol 1 last in the list: Small Stakes No-Limit Hold'em - No-Limit Theory and Practice - Professional No Limit Vol 1.
No Limit: Theory and Practice (David Sklansky): The book details strategies and concepts essential to winning no limit cash games. Each section targets situations a player might encounter in a hand. Excellent read for anyone serious about no limit cash. Best book I have read on the subject.
Small Stakes No-Limit Hold'em (Ed Miller): Absolute must have book for beating NL Holdem cash games. Well written detailing different tactics to apply for playing NL cash. The writer is very good at explaining reasons for play in simple terms.
Professional No-Limit Hold 'em: Volume I (Matt Flynn, Sunny Mehta, Ed Miller): This book is quite advanced and harder to read than most poker books. But there are several concepts that apply to NL cash games that are important. I do feel the authors don't explain adequetely the proper use of the information and readers will require some deeper thinking to make correct use of it. Overall a good book to read.
Ace
on the River
(Barry Greenstein): This book concentrates on state
of being when playing poker with some analytical strategy. It
places you within the poker world and all the things you can
expect. If the Zen books did not help this one will. It approaches
the same issues with a more practical guide. Barry is truely
an example of what we all should aspire to be as a person and
as a poker player.