A library, several blocks in size. After an arduous application process that includes two in-person interviews you get a membership card.
Every book you pull off of the shelves consists of nothing but crowing at how easy it is to create a library. The materials are cheap and the more exclusive you make it seem, the harder fools will try to get access.
At quiet tables, readers with their heads in their hands, finding every book a testament to their folly, unwilling to leave.