If you plan on getting into wood working, you will probably need to make a hole in the middle of a piece of wood at some point. The purpose of the hole could be any number of things, but how you go about making the hole will depend largely on the size of the hole that you need.
Mark where you need the hole made. If it is to be a large hole, use a protractor to draw the hole.
Insert a bit into a drill and hold the drill up to the board in the location you want the hole.
Turn the drill on and push it into the board until the drill goes through the wood. This will make a small hole in the wood.
Use larger drill bits for larger holes. This will work up to a certain size, but will not make large holes. To make a large hole, use a small jigsaw from this point to cut out a larger hole, working out from the drill hole.
Attach a hole saw to your drill instead of a bit. These saws are round and spin from the power of the drill. Place them up against the wood and turn the drill on. The drill will cut a larger hole into the wood. You can use a flat bit to make larger holes as well, but typically hole saws are bigger.