[4] In 2003 Sasse won the Cologne Fine Art Award[5] and in 2005 was shortlisted for the Deutsche Börse Photography Foundation Prize.
He uses other people's photographs from many different and random sources, such as photo albums and flea markets as templates that serve as the basis for his new images.
In his play with the reality depicted in the photographs, Sasse succeeds in confusing the viewer when he looks more closely to them, which arise from contradictions between everyday experience and perception (e.g. by seemingly abolishing the central perspective).
In view of the possibilities offered by computer technology, since around 1990 he increasingly concentrated on editing other people's photographs, and in 1993 he published his first image created in this manner, a so-called "tableau".
Sasse's work Speicher I, first exhibited at the Musée National d'Art Moderne, in Paris, in 2008, is a three-dimensional sculpture containing 512 images.