This untitled 1964 acrylic on canvas presents a densely packed field of concentric circles in warm and cool hues, arranged in a rigorous grid across the composition. Each circular motif combines orange, yellow, green, and red in consistent permutations, creating a hypnotic optical rhythm that vibrates across the surface. The work exemplifies the systematic abstraction and color field investigations central to 1960s geometric abstraction, where repetition and subtle chromatic variation generate visual tension and depth. Leland's methodical approach reflects the era's engagement with pattern, perception, and the material presence of paint itself.