And therein, Tillmans suggests, lies the difficulty some viewers may have with his work: the people in them make no apologies for who they are and what they do. Moreover, the ordinariness of their actions and their intimate physicality is, he says, transformed into a kind of revealing beauty. And far from being the grungy, dirty realist that journalists insist Tillmans is, he would probably agree that there is a deeply romantic strain in his work. 'It uses the language of realism, but it has quite a Utopian quality as well when the subject is transformed. It's not that I want to whitewash the world, it's more like challenging perceived ideas.'