People learn differently

Some people learn well by listening, while others need to see pictures and diagrams. Still other folks need to touch and feel to learn well. It's no different with poker. There are some really great books on poker theory out there. They break down the game in a structured manner. Those who are good at learning concepts do well by studying them.

Then there are people who aren't good at book learning, or just plain find it boring. If that's you, I have an awesome book for you! The Illustrated Guide to Texas Hold'em by Dennis Purdy is more a picture book than a text book. It illustrates 150 hands that represent many common poker situations, and asks you what you would do before explaining what the author would do and why. It's great visual learning. I just kept flipping the pages and had a great time trying to solve the situations presented.

If you're more of a visual learner, get The Illustrated Guide to Texas Hold'em (or the NO LIMIT version).