Another item that I could not live without and neither could my fellow students who often paid e in Ramen for a whirl on my light box (whoa that sounded dirty). It is best to do you drawings in a sketch book so you can erase and all that good stuff. After you have completed your work of art it's nice to transfer it to a thicker nicer sheet of paper ... the only way to do that is with a light box. It makes tracing a breeze and isn't too terribly expensive.