Sabina Lang (b. 1972) and Daniel Baumann (b. 1967) live in Burgdorf, Switzerland, and have collaborated since 1990. Their body of work includes installations, sculptures, large-scale wall or floor paintings, and architectural interventions. The two artists work in a wide range of materials—wood, metal, paint, carpet and inflatable structures—but their true medium is space. Most of their works are site-specific, though some are modular and can be adapted to different situations. Many of their pieces can not only be viewed but actually used as well, while others merely feign usability or artfully subvert it. Through careful prior analysis of the location and context of their interventions, Lang/Baumann initiate a dialogue with the existing situation, often playfully upending expectations and disrupting patterns of perception. With their opulent imagery they deliberately seek a delicate balance between clearly defined categories like public and private space, familiar and strange, art and functionality.