What are some examples of how the rule of thirds is applied in art?

The rule of thirds is a compositional guideline in art where the canvas is divided into a grid of nine equal parts. Artists often place key elements of their composition along these grid lines or at their intersections to create a visually pleasing and balanced composition. Some examples of how the rule of thirds is applied in art include positioning a subject's eyes at one of the intersections, aligning a horizon along one of the horizontal lines, or placing a focal point at one of the intersecting points to draw the viewer's eye.