Joseph Kosuth is an American conceptual artist known for his influential work in the art movement of the 1960s and 1970s. He is best recognized for his exploration of the relationship between language, meaning, and art. His most famous piece, "One and Three Chairs," presents a physical chair, a photograph of the chair, and a dictionary definition of the word "chair," prompting viewers to consider the nature of representation. Kosuth's work often challenges traditional notions of art by emphasizing ideas over aesthetics. He is associated with the Conceptual Art movement, which prioritizes concepts and intellectual engagement. Throughout his career, Kosuth has contributed to discussions about the role of art in society and the importance of context in understanding meaning.