Shanghai Metro offers passengers books to borrow

It sounds like a great idea, particularly if people can read about the history of the transport they are traveling on...

China Daily USA - 26 August, 2013

Shanghai's Metro Line 2 is turning a new page with a library taking literally an online approach.
Passengers will be able to select a book at one station, and return it to any of the other stations with customized bookshelves.
Readers do not have to pay a deposit or any rent for the books and magazines they take. Instead, they are encouraged to donate 1 yuan (16 US cents) to charity at the bookshelf.