My friend Sarah Gee (who I featured in an artist interview back in April) recently released a video sharing the process behind the making of her concentric drawings. It is absolutely riveting to watch as she works.
In the words of Sarah Gee: Making these takes a huge amount of concentration, and a fair amount of determination. The spin is very fast (see the remote control in my left hand: I continually change the rotational speed according to the pressure on the nib), a steady hand is crucial, and layer after layer of colour is applied very deliberately. Considering the simplicity of the primal form, there is a great amount of variety in the finished drawings: some detailed and edgy, some foggy and mysterious.
You can view more of these drawings on her website. Sarah also has a show coming up at Gundrun Tasting Room in Steveston, which you should attend.