http://streetbooks.org/

Check out the re-purposed ice cream cart.These could be highly desirable items in the future!

And I'll point out that traveling bookseller was a good career in the 1830s. Settlers in the back country had a real hunger for printed material:books, sermons, lithographs. Peddlers of all kinds of merchandise traveled the roads. Many of them were recent immigrants--the Syrians/Lebanese in particular. If you know the Broadway musical "Oklahoma!", Ali Shimkis was fairly typical