Victor Vasarely's *Cta-101* is a striking example of the artist's pioneering Op Art aesthetic, rendered in tempera on panel with precise geometric forms that create a compelling illusion of depth and movement. The work employs a carefully orchestrated interplay of shapes and contrasting colors to produce a dynamic visual rhythm that seems to pulsate and shift before the viewer's eyes. Vasarely's meticulous technique and mathematical precision transform the flat panel surface into a vibrant field of optical energy.