I agree with GuitarStv, but wanted to suggest a couple things.
First, don't use open hooks, you want closed hooks to make sure the rope doesn't slip off. (like in his picture)
Second, use a very long screw section. The picture shows a hook with very little screw, and you are going to be hanging from the hook, so you want the screw to go way in deep and not risk ripping out. So I suggest a screw section about 3 inches long, and don't drill the pilot hole too large, it should be really tight. The hook itself doesn't need to be that thick in terms of size, but it should screw a good distance into the wood.