When I visit a book store for the first time and try gauge its potential, there are three sections I check right away: Science Fiction, Comparative Religion, and - most importantly - Used Book New Arrivals.
The Used Book New Arrivals speak not only to the character of the store itself, but also the customers who frequent it. The New Arrivals shelf becomes something of a mix tape, curated (subconsciously! How cool!) by both customers and book store employees, and at a glance opens a window to that particular book store's collective spirit - the community of reading tastes; titles that reach back and forth in time, and across genre; a beam of literary light passing through that unique book store prism, a spectrum spread before your very eyes.
That shelf, it can be chaotic at first glance - but stick with it. Stare at it for a little while and you'll see an image of the store in four dimensions. Stare a little bit longer, and you'll find a treasure worth taking home. Stare at it for years, and find your home filled with treasures.
And at what a price!