In what ways has the internet changed direct-response retailing

The internet has not fundamentally changed direct response marketing but it has transformed how it is conducted. Before the internet, the customer used to call after seeing the infomercial. Today, the customers are exposed to digital marketing which include banner ads and popups which they can click while browsing. 

Her interest would be the first to attract her to read the book then would come connection with the character which would keep her interest in the book.