Tokihiro Sato

I was at the Art Institute of Chicago recently and saw an exhibition of photographs by Tokihiro Sato. The method of photography was intriguing. He would photograph a scene with a large format camera using an extremely long exposure, and then use a mirror or a flashlight pointed at the camera to "draw" on the image. He himself would not appear in the image, but the points of light would.

A quick Google search turned up more images here and here, or just search on google images for Tokihiro Sato

In addition to the points, lines, and squiggles of light, the city photographs have ghosts of cars and streaks where traffic flows. The outdoor scenes have blurred leaves where the wind was blowing.