Sunk relief is a sculptural technique where the image is carved into the surface of the material, creating a design that is lower than the surrounding area. This method was prominently used in the art and architecture of ancient Egypt, particularly during the Old Kingdom, to create detailed representations of gods, pharaohs, and scenes from daily life that would stand out against their backgrounds. Sunk relief allows for impressive depth while still maintaining a flat appearance that was essential for tomb decorations and temple walls.