In his work, Santiago Sierra addresses the relationship between aesthetics, ethics and politics. His works often point to the conditions of exploitation, isolation and repression in which many workers or disadvantaged people live within capitalist systems. Through the documentation of actions and performances, his practice makes visible the hierarchies of power and class that permeate society but that are often silenced in daily life. In this case, the artist offered thirty dollars to six unemployed young people in the city of Havana for agreeing to tattoo a line on his back. This action highlights the situation in which a large part of the population of Latin America lives, forced to accept any labor condition or risk their bodies for a very poor salary. The line, the smallest gesture possible, also refers to the art of the sixties and seventies, to Minimalism and to Conceptual Art, which for the most part kept out of the social and political problems of their time.