The Fourth Wall is as most of us know a concept often used by actors to signify the invisible stage wall where the audience is seated to view the play. The stage is viewed from the perspective of the audience where they are able to view the set through a “window”. The series by Klaus Frahm is really captivating because of him photographing the back of the stages. Allowing the viewer what’s behind the stage: mechanical tools, lighting structures, scaffolding etcetera.  The wall sort of dissolves which questions the hierarchy between the stage and the audience. “Signs of human presence within landscape became my subject, eventually preparing me to photograph architecture and starting my own business in 1980.”