In order to know the basic fundamentals of how to play poker profitably we recommend beginners should concentrate on playing No-Limit Hold'em at the low-limits. That means buying into games that are within your poker bankroll. New players should also spend time studying the Poker Basic Course here at the school and when they feel confident enough they should attempt the Poker Basics Quiz at the end of the course.
PokerStars provide many different Play Money games which are great fun and a great way to practice those skills before moving up to real money games. Here's a short video explaining how to get started with play money poker.