One of the classiest motivators, something virtually guaranteed to get people to pick up a book, appeared a few years ago.
It was a several-paneled cartoon which started simply with a kid’s beginning to read a book. The second panel showed the child expressing greater interest.
The third section showed some kind of monster on the page, and the young reader growing fangs, facial hair and claws.
The exaggerations continued, with the message that by the time the child got well into the book, the child herself had changed. She had become what she was reading.