if you're in the Detroit area, the two best bookstores in the world are the two John King Books locations (one in Detroit, one in Ferndale). Each location features shelves overstuffed with used and rare books, and I can lose myself for hours whether I'm looking to finally try and read Marcel Proust, or if I want to find some random high fantasy or sci-fi novel no one's ever heard of. Generally it's cheaper than Barnes & Noble (no shade, I used to work there), and besides, it's cooler to have your own unique edition of a book rather than the mass market version you get buying new. Incredible staff too, btw. Can't recommend highly enough if you're near the Detroit.
