We're talking about bookshops in barns, disused factories, converted churches and underground car parks. Bookshops on boats, on buses, and in old run-down train stations. Fold-out bookshops, undercover bookshops, this-is-the-best-place-I've-ever-been-to-bookshops. Meet Sarah and her Book Barge sailing across the sea to France; meet Sebastien, in Mongolia, who sells books to herders of the Altai mountains; meet the bookshop in Canada that's invented the world's first antiquarian book vending machine. And that's just the beginning.