What was Sam Gilliam most famous art work?

Sam Gilliam is most famous for his innovative "drape" paintings, where he suspended and draped large canvases, allowing them to cascade like fabric rather than being mounted flat on walls. One of his most iconic works is "The Pure Black Series," created in the late 1960s, which exemplifies his exploration of color, form, and the relationship between the artwork and its environment. Gilliam's approach challenged traditional notions of painting and has had a lasting impact on contemporary art. His works often reflect themes of freedom and transformation.