Theoretically? By category (broadly: history, anthropology, other non-fiction, mystery, sf/f, children's, romance) and then alphabetically within category. Currently? Wherever I can freaking fit them, the shelves are 2-deep and Tetris-ed in to maximize storage. I CANNOT wait to move!
Enough of the horrors and doom scrolling. Let's talk about something fun.
How do you arrange your books?