Birdhouse Books, in the basement level at 1001 Main St., Vancouver, will offer a backstock book sale from 11 a.m. to 5 p.m. Sept. 16 and 17. Books from every genre will be available to purchase for $5 per bag of books (maximum 15 books). Genres include fiction, mystery, classics, romance, Western and children’s books. Shoppers should bring their own bags. Learn more at birdhousebooks.store.