Guy Porfirio has illustrated more than eighteen picture books, including the New York Times bestseller Grandpas Little One by Billy Crystal; Papas Gift by Kathleen Long Bostrom; an...voir plusGuy Porfirio has illustrated more than eighteen picture books, including the New York Times bestseller Grandpas Little One by Billy Crystal; Papas Gift by Kathleen Long Bostrom; and Jump!, which he wrote and illustrated.voir moins