Conceptual and Minimalist art movements emerged from the abstract art of the 1940s and 1950s. In turn, additional sub-genres have evolved from these conceptual and minimal principles such as Hard-Edge Painting and Op Art. Thought Made Visible highlights selected pieces from the Zillman Art Museum’s permanent collection that share an ideology of working with a thought or concept visually to ultimately create an artwork. Sol LeWitt, regarded by many art historians as the founder of Conceptual and Minimal art, believed that the idea of the art was of greater importance than the execution of the final aesthetic product. He believed that even a thought could be a work of art. LeWitt investigated line and shape through the application of variation and repetition as seen in Lines from Sides, Corners and Center and Arcs from Four Corners. His contemporary, Robert Mangold, explored similar ideas with a focus on symmetry and geometry. In his four untitled woodcuts included in the exhibition, Mangold depicts a sequence of double trapezoids that contain other geometric shapes and lines.