Reading poker books is one very effective way you can go about improving your poker game. Poker books contain structured content that is tailored towards players of a particular skill level. This means it is much easier for you to learn when compared to finding information from various sources across the internet. You just have to make sure to find a book for your skill level! Other than reading poker books, I find that poker training sites which provided structured content such as poker courses are very helpful. But books are a cheap way to improve your poker game in a time effective manner once you are willing to study the book and not just give it a quick read!