If you scroll to the top of this page, you'll see the header Poker Strategy near the left. Click on that and you'll have resources for how to learn poker, gain strategy, other games, beginner and intermediate topics, and everything you need to get started improving your game. Good luck!
I think the most effective way to learn to play poker is START PLAYING and make MISTAKES. Post those mistakes to hand analysis forum and learn by feedback. You NEED to make mistakes in order to improve.