Official illustrations of four main `` Harry Potter '' characters have been released . The first is a picture of the Hogwarts Express and its driver, which was used in the film to transport students from school to school. The series has sold more than 450 million copies worldwide .
Official illustrations of four main `` Harry Potter '' characters have been released . The first illustrated copy will be released October 6 . The series has sold more than 450 million copies worldwide .