Once again, Klassen turns to a favorite subject—the interactions between animals that are focused on the same hat. Here two turtles walking through a desert find a cowboy hat. It looks good on both of them, so who gets to wear it? They decide to solve the problem by leaving the hat behind, forgetting that they ever found it. But can they? The pictures go on to tell the story, with negative space and body language used to great effect, often contradicting the text. Even the position of a turtle’s eye speaks volumes in this droll understated story of the problems hat envy can stir up, and the surprisingly generous (given the previous “hat” books) resolution of this simple yet sophisticated work. (Ages 4–8)