I'm a big nerd. Let's make no mistake here: I am a bespectacled, ironic T-shirt wearing, library card carrying nerd. As part of my nerdiness, I make a point of visiting used bookstores whenever I can. Because they might not have what you need, but they'll probably have something you want.
There are a couple independent / used bookstores here in Lancaster, though they, like everywhere else, are a dying breed. They have to compete with big chains and online sellers like Amazon and eBay in an age where print is pretty much dead and the literacy rate is abysmal. So the odds are stacked against them a bit. This is where good branding and good design might help out.
Let's take a quick look at the 2 bookstores within walking distance of GO HQ: