Julian Opie's "Day and Night" comprises two acrylic block multiples, each screenprinted in color on all four sides, creating a three dimensional artwork that explores opposing states through its dual structure. The work exemplifies Opie's interest in seriality and production methods, employing industrial materials and printing techniques to examine conceptual themes. The screenprinted imagery on the blocks likely presents contrasting visual or thematic content across the surfaces, inviting viewers to circumnavigate the objects and consider their relationship as a complete paired set.