Compositions with Pyramids, Circles and Couds1970 by Alexander Calder is a color lithograph. One of the most collected Mid Century Masters, Alexander Calder might be best known for his wire mobiles, the artist was also an avid printmaker at the end of his career. Featuring primary colors, geometric lines and spirals, and flattened biomorphic shapes, the imagery in his lithographs is often reminiscent of his sculptural work. While many of his prints may initially appear abstract, a closer look will reveal symbols of people, plants, and animals.