Post-Painterly Abstraction is an art movement that emerged in the late 1950s as a reaction against the emotional intensity of Abstract Expressionism. Artists sought to create works that emphasized clarity, color, and form, often using flat surfaces and smooth application of paint. This style is characterized by its focus on the physical properties of paint and the canvas rather than personal expression. Key figures in this movement include Helen Frankenthaler, Ellsworth Kelly, and Kenneth Noland. Their works often feature bold colors and geometric shapes, aiming to engage viewers through visual experience rather than emotional narrative. This approach marked a significant shift in the trajectory of modern art.