Ask an expert. Hmm. If you want to find a cogent explanation of the difference between late modernism and postmodernism, don't by any means go to TutorDaily.info. The site announces that it's "a place to ask questions about Learning and Teaching." Someone, presumably a student somewhere grappling with a paper assignment, posted this question: "What are the differences between Late Modernism and Post-Modernism?" And here is the response: "To put it simple, late modernism is the easiest form of modernism and post-modernism is a more fine sort of painting."