Four Regular Solids , by m c escher , 1961 , tessellation , Op Art style , Line
An orange and black geometric design on a white background.
An orange, red, and black geometric design is on a white background. The design is an octagon with eight sides. The lines are black and thin. The orange and red lines are arranged in a symmetrical pattern. The black lines are straight and parallel to each other. The white background is plain and unreadable.