Big Bob, Little Bob by James Howe
From Candlewick Press:
Despite the fact that they share a name, Big Bob and Little Bob are different. Big Bob likes trucks and throwing balls and being loud. Little Bob likes dolls and jingling bracelets and being quiet. No matter what they do, they do not do it the same. Could they possibly be friends despite these differences? With humor and tenderness, James Howe and Laura Ellen Anderson beautifully depict the struggles and rewards that come when friendships are forged between different kinds of people.