There, her black-and-white paintings—which created illusions of movement—were shown alongside works by Victor Vasarely, Richard Anuszkiewicz, Frank Stella, and Ellsworth Kelly, among others. In the late '60s, she introduced color into her work and went on to win the Prize for Painting at the 1968 Venice Biennale. Since then her work has unfolded through numerous groups and series that engage the viewers' perception to induce simultaneously shifting patterns of forms and changing, optical mixtures of colors. Over the past decade, she has also made large, black-and-white murals that shape and articulate the environments they occupy. Her work is ultimately inspired by nature—“although …