History (inc. premodern historical texts) by time period/region; other nonfiction by subject or type (e.g.memoir has a lil shelf); fiction divided into a few broad genres with admittedly fuzzy boundaries. Scifi/fantasy is the biggest section so it gets alphabetized by author.
Immigrant PunkEnough of the horrors and doom scrolling. Let's talk about something fun. How do you arrange your books?