Mono-ha is an art movement that emerged in Japan during the late 1960s. The term translates to "School of Things," emphasizing the relationship between natural and industrial materials. Artists in this movement focused on the inherent qualities of objects, often using simple, unaltered materials like stone, wood, and metal to create installations that invite viewers to engage with their surroundings. The movement challenged traditional notions of art by prioritizing the experience of the viewer and the context of the artwork. Key figures in Mono-ha include Lee Ufan and Natsuyuki Nakanishi, who explored the interaction between space, materials, and perception, fostering a dialogue between the artwork and its environment.