Which type of resource is typically NOT included when assessing fictional collections in a library?

When assessing fictional collections in a library, textbooks are typically not included because they serve a different purpose than fictional works. Textbooks are primarily educational resources designed to provide instructional content and information on various subjects, whereas the others—biographies, classic novels, and graphic novels—offer narrative forms of literature and storytelling. Biographies, although factual, are often categorized under nonfiction; they can still be considered for a fictional collection due to their storytelling element. Classic novels and graphic novels, on the other hand, are firmly in the realm of fiction, focusing on creative narratives and characters. Thus, the nature of textbooks makes them distinct from the fictional content that libraries aim to assess and curate.