Stanley Changes in the book holes by getting stronger, fitter, has friends and also much more confident where as before, Stanley Yelnats was fat, had no confidence in himself and had no friends at all.
Stanley Yelnats is a character in the book "Holes." In the book, the author does not really come and say what color Stanley's skin is. It does not really matter in the book. When the book was made into a movie, Stanley was portrayed by a white actor.