Just finished this (it had popped up on a couple of booklists) and I found it very enjoyable.

"A breezy, big-hearted treat, especially if you've ever wondered about the inner workings of America's national treasures - neighborhood bookstores." 

"This novel has humor, romance, a touch of suspense, but most of all love - love of books and bookish people and, really, all of humanity in its imperfect glory."