In your local library, books are usually fairly easy to find because there is a system or method of organization that that library uses. Our books are currently sorted into Spanish and English books, and each of the languages must be sorted into smaller subgroups.
English books will be sorted into easy, medium, and hard so that those learning English can find a book that matches their skill level. We use stickers on the spine of books to make it clear what category the book goes in: green for easy, yellow for medium, and red for hard. The "sticker method" will make it easier to re-shelf books and to find the appropriate books at a glance.
Spanish books are sorted using the following guidelines:
Nonfiction Science (Books that explain things scientifically like a book about planet Earth, a book about different types of birds, or books that teach you how to do something, like a book on how to train a puppy) – Black
Nonfiction History (books that recount historical events like wars or the origins of traditions, biographies) - brown
Realistic Fiction (stories that could happen in real life but are made up ex. Junie B. Jones, Holes, The Outsiders) - White
Fantasy (fairy tales, myths, dragons, anything involving magic ex. Harry Potter, Narnia, The Lord of the Rings) - Pink
Science Fiction (spaceships, time travel, crazy inventions, fantasy that can be explained by that universes’ “science” ex. Star Trek, Jurassic Park, Divergent) - Purple
Mystery (whodunit? Usually centered around a murder or missing object; can be combined with other generas of fiction Ex. Nancy Drew, The Da Vinci Code, Crocodile on the Sandbank) - Blue