Lots of light-drawing or light-graffiti in the Internet, it is everywhere, from Flickr to Youtube. LEDs and digital photography have helped a lot in creating these new “one-shot art” pieces. Maybe you didn’t know Picasso did that before. Was he the first? I don’t think so but I can’t be sure until I find a previous light-drawing. Please if you know some artist who did light drawings before Picasso leave a comment, I am really curious.