The document discusses social issue posters and what makes an effective poster. It notes that effective posters tell a story, can be read from a distance, are interesting and eye-catching, have a simple uncluttered design, use clear language and images logically, and summarize key points without excess detail. It provides examples of social issue posters that communicate a message, reveal worldwide issues, often call for a response or movement, and can address political, personal, racial, environmental or other topics through visuals and facts about the issue.