Bridget Riley's "One Small Step" is a screenprint that exemplifies her signature optical art practice through its precise geometric composition and carefully calibrated color relationships on wove paper. The work's title evokes both the famous Apollo 11 lunar landing and the incremental visual shifts that characterize Riley's systematic explorations of perception and movement. Created as an edition print, this screenprint demonstrates the artist's commitment to making abstract geometric abstraction accessible through the reproductive medium while maintaining the optical vibrancy essential to her practice.