Juanito accompanies his grandmother to a flea market in southern California, where he helps her and the other vendors and where they enjoy seeing old friends from their Mexican-American community.

Have you ever imagined what you might be when you grow up? When he was very young, Juan Felipe Herrera picked chamomile flowers in windy fields and let tadpoles swim across his hands in a creek. He slept outside and learned to say good-bye to his amiguitos each time his family moved to a new town. He went to school and taught himself to read and write English and filled paper pads with rivers of ink as he walked down the street after school. And when...