Totally abstract and non-figurative, these compositions are based on relatively uniform grids, creating squares and/or rectangles. Thus, the linear predominates. Color and often the placement of metallic leaf-gold, silver, or copper create a rhythmical counterpoint to the line and rectilinear shapes. The overall effect is one of symmetry, calm, and order. The excitement is produced by the activity within the “boxes” or “windows” rather than the interrelationship of the “squares” themselves. Many paintings in this series include in the title “blue emerald,” as the first twenty or more works were based on the mythical stone that reflects the sky color at dusk, just before darkness.