@todwest@bookstodon yes indeed. All of the other bookcases in the house are nonfiction, by subject. I have thought about doing the dewy decimal system: 200s in the den, 300s through 600s in the office, 800s in the living room, and 900s in the dining room.
Well, except that I have all the 741.5 books (graphic novels) shelved with fiction. 😁
I really tried to separate biography, politics, academic books, and history books, but some books are equally about biography, history, and politics.