"Basements" — low, floorplan-like sculptures, with concrete blocks and copper pipe, or bricks and copper pipe. 1987 - 1989|89: Sculptures of "Filing Cabinets" with wood, steel strips; tension and pressure keeps the new order of components stable. Since 1989: "Tapestry" of industrial textiles, with no "ground" due to the color-form-material complexes, sewed up next to each other; Wall fixtures, varying in type and shape, have a supporting and visual function. Since 1989: Project drawings for planned sculptures and installations, computer-generated using a pixel-oriented program, and printed with a 24-needle printer; "Pneumatic Pieces" — Free-standing works, with hydraulically or pneumatically driven lifting devices for inside; "contraptions" made of items from industrial and domestic parts. "Pneumatic Installations" — Installed works, with hydraulically or pneumatically driven lifting devices for both inside and outside; "contraptions" made of items from industrial and domestic parts. 1993 - 98: "Bilaterale Beziehungen" (Bilateral Relations); "Screens": Lattice-structures of rubber- or polyurethane-mounted on both sides of a wall; anchor bars inserted into holes in the walls, helical pressure springs, and anchor nuts have a visual function and hold the parts together. "Gloriolen": cast reliefs, mounted on both sides of a wall, using the same principle as in "Screens", the cast reliefs are held together through anchor bars, helical pressure springs, and anchor nuts that also have a visual function. Since 1995: "Barrieren" (Barriers) — foundation-like, knee-high constructions in concrete and steel reinforcement, made on site, designed for the dimensions of the space, and blocking the evident path through the room. 1998–2001: "Spacelab" — made out of living room lights from the 1950s–1970s, hanging from the ceiling.view] Since 2000: "Analogic Discs" Paintings: Trampolines are the support, which is a constructive and visual part of the appearance. The support, the form, the material and the color are different, and they are piled on each other. Since 2001 Biomorphic sculptures "Stool Archipelago", "Island growth", "stump stools" are groups of sculptures made of fibreglass plastic on the basis of known organic forms. Since 2003 Colour photo series entitled Falsches Wasser (Fake Water) featuring ships and boats on land in town or countryside settings on the Canary Islands, Spain. Since 2006 EinRaumHaus (OneRoomHouse) colour photo series of small buildings in the landscape of the Canary Islands, Spain. Instant sculptures: The sculpture entitled "roundabout" for the public space, consisting of industrial units such as trolleys and fences, which contrary to its conventional use are connected to