4 x 1: This title refers to the impressive book concept by the artist Klaus Dauven, in which he realizes four projects on four different days. At four distinct locations, the artist frees the surfaces by removing dirt, moss, and weather-related color changes, allowing his sculptural drawings to remain like shadows on various substrates such as concrete or tartan flooring. Patterns and shapes stretch across large concrete areas, emerging like testimonies from a shadow world. Klaus Dauven's outdoor works initially provoke curiosity and reveal their essence to the viewer only upon a second glance. They are traces that mark the surfaces, as well as images that unfold like light and shadow drawings. The surroundings of the surfaces are mirrored, reflected, historically interpreted, and formally represented.