"When you look at a bird, do you see feathers and a beak? Or do you see circles and triangles? Artist Charley Harper spent his life reducing subjects to their simplest forms, their basic lines and shapes. This resulted in what he called minimal realism and the style that would become easily recognized as Charley Harper's. Art fans and nature lovers around the world fell in love with Harper's paintings, which often featured bright colors and intriguing...