Thanks, guys.
I do indeed have bookcases in the room. (Guess I neglected to upload that photo.) The end of the room opposite the fireplace has 5 six-foot bookcases and there is a smaller five-shelf one beside the painting desk. Then upstairs I have another two bookcases. And yet, still not enough for all the books I'd like to have! On the other hand, I moved 26 cases of books last time we moved. Not looking forward to doing that again!