Allison’s anthropology class has the assigned reading, "Sapiens: A Brief History of Humankind by Yuval Noah Harari." Her professor has described the reading as “an informative and unique approach that challenges accepted narratives and examines specific events within the context of larger ideas, written by a professor and historian, an international bestseller, and includes photographs, maps, and illustrations and diagrams.” Which characteristic of Allison’s reading assignment reveals that it is a nonfiction book?