Planet Money, probably their second best textbook story: http://www.npr.org/blogs/money/2014/11/10/363103753/textbook-arbitrage-making-money-off-used-books htt

Planet Money, probably their second best textbook story: http://www.npr.org/blogs/money/2014/11/10/363103753/textbook-arbitrage-making-money-off-used-books http://www.npr.org/blogs/money/2014/11/10/363103753/textbook... (best imo was talking about the whole mess around writing textbooks)