The rules of Rummy are easy to learn. However, mastering the game is not so simple.
Perhaps the easiest way to learn how to play Rummy is with this interactive Rummy tutorial.
Rummy is a strategy game. To be successful, you need to make a mental note of which cards have been discarded and try to deduce which cards are in your opponent’s hand. Having a good memory and being able to keep track of all cards played is one factor in being a a winning Rummy player.
Some people prefer to play Rummy with tiles instead of cards. One popular tile version is called Rummy-O.