Conceptual art is an art movement that emphasizes ideas and concepts over traditional aesthetic and material concerns. It emerged in the 1960s and challenges the notion of what art can be, often using everyday objects or language to convey messages. The artist's intention and the viewer's interpretation are central to the experience of the artwork. This form of art often involves installations, performances, or text-based works, rather than conventional paintings or sculptures. Notable artists associated with conceptual art include Sol LeWitt and Marcel Duchamp, who famously used ready-made objects to provoke thought and discussion about the nature of art itself.