From today's perspective, Leon Polk Smith's artistic position can be understood as a "missing link" in art history. His work connects the European avant-garde with the American abstraction of the 1940s/1950s via references to the paintings of Piet Mondrian. Smith's pioneering role in the Hard-Edge style and his Shaped Canvases are in turn achievements that spread from the US to Europe. With his unique Constellations, Smith became known beyond the borders of the US. In recent years, his work has gained new visibility thanks to numerous exhibitions in the US. The solo show at Museum Haus Konstruktiv in Zurich and the accompanying publication are intended to contribute to the long overdue new reception in Europe.