Engaging identity to increase sales

Just found a great example of how to stimulate your sale through engaging the addressee's creativity and building of identity. My 9-year old girl got this book from our bookclub -'Books I've read'. It's encouraging her to summarize and rate the books she's reading. In this age the kids have to start reading most everything as they have not yet learned what they like and not. It is part of their identity to like or not like and through collecting the rates in a book they are getting forward in this process. It's fun both to like and to not like, and there is a big chance that you will want to read more than before. Great thinking from Barnens Bokklubb.