Another idea related to this, have QR codes linked to trailers of movies that have been published. Not sure if you want to read that book? Watch the movie trailer first and see if it interests you.
These are ideas that I got after watching this video:
I also found this great QR code generator, that will generate a code for a variety of different sources, such as SMS messages, videos, web pages, etc. The same person has also created a QR reader/scanner for ios devices. It's free for the basic scanner, there is an upgrade if you would like to use your Smart device to create the code also.
More apps to come!!