Little J, Little J.
Today he was BEYOND fascinated that I had two copies of the same book AND that everything was exactly the same in them.
He checked out all the pages. "Read me the part when she says PU again! I'm going to find it in the other book now."
"Look, that's a picture like in this one!"
And then, a lightbulb clicked on in his brain...a different-colored lightbulb, but a lightbulb nonetheless:
"Mrs. Overman! This author must be really good at drawing. She copied the same EXACT picture on this book! And it looks the same as this one in the other book!"