Whether you're on the hunt for the Faulkner corpus or just a sole Bellow tome, Book Thug Nation is the latest go-to for used fiction and martial-arts manuals — all under one Williamsburg roof. That last word actually represents a coup for the co-owners, four independent booksellers you've probably brushed past or bought from many a time on the sidewalks of Bedford Ave. Beside selling literary categories from A to Z on the cheap, this memorably named establishment also hosts readings, lectures, and even neighborhood meetings. Check the calendar for upcoming events.