Dieter Roth (1930-1998) was a German-Swiss conceptual artist best known for his artist's books, editioned prints, sculptures, and works made of found materials, including (oppressive smelling) biodegradable foodstuffs. Blurring the line between process and product, Roth embraced accidents, mutation, and mutability in his finished works. Defining it as a “community of like-minded things,”the book played an important role in Roth's work. He stretched and challenged conventional ideas about the concept of artists’ books, and implemented new formats and techniques to expand the book beyond its traditional boundaries.