Many people think of the pencil as the one and only drawing tool. The poor eraser gets pushed aside as something that only gets used after you've made a mistake. But that's a wrong approach to take - your eraser can do a lot more than just cover up...

I noticed my keys yesterday, and how interesting they are visually, so I decided to draw them today. Keys are a good subject for a drawing exercise - just about everybody has a set on hand, they are a good size for a detailed drawing, and they usu...