Dieter Roth's unique and eclectic Tischmatten ("Table Mats") incorporate drawings, paintings, photographs, and ephemeral materials. Roth placed these gray cardboard mats on tables in his apartment, studios, and houses, collecting what he referred to as the "traces of my domestic activities." Along with spontaneous doodles and drips and stains from the kitchen, Roth affixed leftover food, notes, and photos to the mats, creating still lifes that he would supplement with painting and collage and that had an emphasis on symmetry and mirror images.

Dieter Roth, Bjorn Roth: Work...