Francis Bacon painted pictures based mostly on photographs published in encyclopaedias, popular magazines, the tabloid press, posters and packaging. He was interested in reproductions of paintings by great masters. He used photographs by Muybridge. Photographs, treated by Bacon as tools, were later “worked on” by the artist, becoming the canvas for his paintings. The scenes he chose – often drastic, depicting rape and violence – were painted into his canvases, creating a deformed image of the world that “emerged” from the horrors of both world wars. He painted portraits based on his photographs of friends. These were usually people with whom the artist was emotionally connected. He painted self-portraits base on a series of photographs take...