Works of art that use a grid

Works of art that use a grid :
 * Robert Ryman, Untitled (1962)
 * Hanne Darboven, Sand (1979)
 * Agnes Martin, Stars (1963)
 * Sol Lewitt, Modular Cube/Base (1968)
 * Art & Language (Terry Atkinson and John Baldwin), Map of Itself (1967)
 * Chuck Close, Self-Portrait (1997)
 * John F. Simon Jr., Every Icon (1997)