Donors are aware the books may get tossed like junk mail, according to the publisher. Yet they still shell out money for the books in the hopes that will some people will flip through it, Hall said. "People care enough to work hard to give up their money knowing not everyone is going to read it, but at least [recipients will] have an opportunity to say, 'That's pretty awesome that somebody cared enough to send a book and they don't even know who I am,'" Hall said.