How about a New York Times Best Seller of a Dad following Banksy with his 2 and 4 year old girls.
The GeoGraff Girls Unmask Banksy in NYC
All about the hapless adventures of a Dad and his two girls following Banksy around NYC. An art book with photos and text. Thinking Taschen for a publisher.
the story and pictures are entertaining and thought provoking.
it could work.