Summers produced his first woodcut prints in the early 1950s. By the 1960s he was making abstract, highly colored images that often reflect the mood of the landscapes he saw in his travels to Europe, East Asia, and across America. Most often working in woodcut, his compositions rely on large, strong, abstract shapes, often overlaid with smaller forms in contrasting hues.
Source: https://www.nga.gov/collection/artist-info.3146.html
