RaveThe Sydney Morning Herald (AUS)Greenwell is fearless about getting to the murky bottom of things. A signature skill is his ability to draw out the seemingly opposed impulses of intimate experience ... Cleanness is a dangerous book, not because it is explicit, but because it lingers in ambivalence – fully stretching and searching for the potential in uncertain pleasures and connections. It offers little resolution, but many moments of intensity, happiness, solidarity, belonging, and the kind of forward momentum that comes from tracking existence in its most honest contradictions.