When Jeremy was five he wanted to be an astronaut or a cowboy—or both. And he had a best friend named Mark. But now he's six and wants to be a major-league baseball player or a deep-sea diver. Jeremy knows things change as you grow up, but some things just might stay the same—like your best friend. "Teachers looking for stories on friends to read to kindergarten and first-grade classes will request this picture book year after year."—Booklist