Josef Albers: Grey Steps, Grey Scales, Grey Ladders, is a mesmerizingly beautiful exhibition on the visual possibilities of the color grey within a confined geometric shape. Over his lifetime, both at the Bauhaus and later at Black Mountain college, Albers made over one thousand works in his celebrated series “Homage to the Square” – an investigation into the visual effects of color and the spatial relationships within mathematically spaced nesting squares. The elegant exhibition at David Zwirner, organized by Brenda Danilowitz, focuses on Albers’ explorations into the myriad possibilities of the color grey and how the visual perception of one shade of grey is altered depending on the intensity of an adjacent shade and its spatial relation to it. The result is a visual feast of harmony, movement and balance that influenced countless future artists concerned with the idiosyncrasies of Color Field painting and Geometric Abstraction. Through December 17.