Gestural marks are spontaneous, expressive lines or shapes created by an artist's hand during the process of drawing or painting. These marks often reflect the artist's emotions, movements, and intentions, adding a dynamic quality to the artwork. They can vary in thickness, length, and direction, contributing to the overall texture and rhythm of the piece. In the context of art, gestural marks are commonly associated with movements like Abstract Expressionism, where artists like Jackson Pollock and Willem de Kooning emphasized the act of creation itself. These marks can serve as a visual language, conveying meaning beyond representational forms.