A large-scale geometric parallelogram rendered directly onto the wall surface using layered India ink washes creates a striking illusion of three-dimensional form through the precise application of tonal gradation. LeWitt's systematic approach to conceptual art is embodied in this isometric figure, where the instructions themselves serve as the artwork, allowing the drawing to be executed by others. The deep, luminous blacks and subtle gradations of the ink washes transform a simple geometric shape into a meditation on form, space, and the boundaries between drawing and architecture.