Whenever you go to the library, you may be trying to find a book fast. You don’t want to pull out every book off the shelves to inspect it. Instead, you may just look at the spine. It is common for people to like one type of book over another one. For instance, some people like fiction books better than nonfiction books.
At a bookstore, you can determine the difference between fictional and nonfictional books usually by reading the titles of the books. Fictional books are easy to spot because they are not real. Nonfiction books are about real things. Sometimes, the author’s name also appears on the spine. If you read a lot, you can determine by the author whether it is fiction or nonfiction. In the library, you use the Dewey Decimal system.