Goldbach's work particularly reflect the relationship between time, written language and the technical image. His appropriations and recordings of sources of visual art, and their theory, aim at a history of ideas of storage media, at the materiality of information and at the physical processes of its inscription.

''Stacks / Progressions'' is an object trouvé, an old Fujifilm illuminated advertisement mounted in an aluminium frame. The horizontal hanging of this light sculpture formally refers to the works of Donald Judd, long regarded as icons of Minimalism. The common time horizon of Minimal Art and Analog Photography forms the basis of this convincing, literally "minimalist" artistic setting.