Santiago Sierra’s work, titled 160 cm Line Tattooed on 4 People El Gallo Arte Contemporáneo. Salamanca, Spain. December 2000, is exactly what it says it is. Like many of his works, Sierra hired people off the street to be human props. In this case, four heroin addicts would be paid with a shot of heroin for getting the line tattooed on them. As inhumane as it sounds, these tattoos were completely consensual. While the transactional element of this artwork does seem to bring up something about money or capitalism, it does not force or even suggest any viewpoint. What it does do is place this act in an environment that welcomes critique and dialogue. Categorizing anything as art makes people look at it in a more thoughtful way—they try to find meaning and form their own conclusions. It is through art that Sierra promotes thought, and through thought that democracy thrives.