The drill library is a collection of several drills to help your game. To begin, familiarize yourself with what is in there. Depending on what you are working on, guide yourself to drills that will help with your game. These drills all relate to some part of the M-System. If you have a problem with a particular part of the M-System, you can find additional drills in the drill library. These will help you navigate your game through that system. Just have fun. Try the drills. There is not a drill in the drill library that will hurt you. Suppose you find a drill that is hard to do. Work on it. It will make you a better player.