Pablo Picasso created a series of light drawings in 1949 by using a torch and long camera exposures in a dark room. He was inspired by photos of ice skaters with lights on their skates. Picasso's images were made by leaving the camera shutter open as he moved a light source, capturing light streaks. The document also discusses imitating Picasso's technique by taking photos with long exposures and editing them digitally to emphasize the light streaks.