Dog Eared, while not as big as some of the big boys, is one of my favorite used book stores in the city. They have a nice selection for their size, alphabetized and divided into browser-friend sections and the staffers are lovely and very knowlegable about their stock.
The store also offers a small selection of new titles, used CDs, alternative press and a decent kids' section.
If you're selling, they pay fair prices and take a wide variety of books.
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