im an amatuer texture creator but have no idea what a bumpmap is. can someone tell me?

normal textures are like a wrapping or a cover
bumpmap textures are used to add depth to the normal textures using ingame light

A bump map i believe makes your textures have more, texture ;/

So if you had a peice of paper, it's flat right? Well what if you crumpled it up and then put it flat again, it would be bumpy and stuff.

flat piece of paper = normal texture
crumpled piece of paper = bumpmap

That's just my take on it.

thanks