"Bertie wants to go with his dad to work at the construction site-- but he's too young, and he has to go to school. While he's there, he does everything that he can to be like his dad. He paints cranes during art, climbs to the top of the jungle gym to see the tower that Daddy is building, and even builds his own tower out of boxes. After Daddy picks him up, Bertie tells him all about his day and what the best parts were. Daddy tells Bertie all about his day too ... But what was the best part of Daddy's day?" -- dust jacket flap.