Tillmans makes abstract works that challenge pre-existing hierarchies around photography. He constructs cameraless photographic images via a process of exposing photosensitive paper to light sources.
In the case of his 'paper drop' series, Tillmans photographs curved sheets of photographic paper. In these works, the sheet of photographic paper becomes sculptural, transformed into a voluminous, almost liquid state.
Tillmans does not view his abstract work as separate from his figurative output, and their power lies in the startlingly personal sensation elicited from something so abstract.