After having been read the story of Bigsana Visseresh, Achashveirosh asks if Mordechai was rewarded. Well, he heard the story as well as the guy reciting it. What's the point in asking about the story if it's not in the book?
The obvious answer is, that the guy reading it can see the pictures. So this leaves me wondering if they were color pictures, black & white, or sepia?