Who lives in this room? Some one very busy based on the large amounts of paperwork lying around. Someone who reads a lot based on the number of books.
I find it very difficult to identify someone based solely on seeing one room. It’s a snapshot and not a particularly good one. I’m not that careful about decorating my space so I never expect a room to be a big statement about the person who lives there. It’s just a space to live in for a while.