Wallpaper of Shadows - The exploration of shadows has always been at the core of Carsten Höller's work - Double Shadow Zollner Wall Paper 2007
All metaphors do not come from the appearance of objects - "Double Shadow 2007"

Sound installations are one of the distinctive explorations in contemporary art. Music Machine 2007. The solo exhibition "Dounle Shadow" by Carsten Holler, a Belgian artist living in Stockholm, Sweden, was exhibited at Air de Paris gallery in the 13th arrondissement of Paris in January. Carsten Holler is skilled at mastering objects and spatial installations. In this "Dounle Shadow" solo exhibition, she attempts to explore distinctive shadows through objects and sound installations. Critic Jonathan Shaughnessy wrote, "Through those confusing machines, Holler does not explore the level of questioning appearances, but rather some more basic things that can exert their influence: these objects attempt to simultaneously disturb and awaken awareness, especially in that privileged location, in order to suppress their personal subjectivity and emotions."