The name of my file for these street art photos is “bomb illustration” – I don’t know what else to call it. They are throw-ups, as in a quick bit of graffiti using one or two colours and it is an illustration. They are about style and imagination. There are artists who do a lot of these like MaxCat and Sims who can fill a whole wall with it. There are artists who do it as a kind of visual tagging, drawing the same thing over and over. And there are unknown artists who draw or paint on walls when the opportunity and the environment presents to them. I enjoy them.