Planar Squiggles by Tim Mooney

This one came out of my head.

sketch of bowl
Planar Squiggles © Tim Mooney 2011

I was reading an essay on perspective drawing which I very much enjoy. So I started with the top circle (planar reference lines) and finished with all the squiggles. Everything else happened in between. There are some excellent books on learning drawing on the net. All you have to do is get one and start.