"The King of Rare Books If John K. King Used & Rare Bookstore looks more like an enormous factory than a sweet independent bookstore, consider this: The building, which was once an old glove factory, stuffs more than a million secondhand and rare books onto each of its four floors. Each of these floors is open for browsing Monday through Saturday, but inquisitive readers must schedule an appointment to view the Rare Book and Art Book Rooms. With such a colossal selection, it's rare that readers leave without an extraordinary find."