Pretty is as pretty does Pretty, popular Marcia Faitak is not her usual self. Over the summer she gained five pounds, and when school begins, Marcia, desperate for an invitation from Alex Ryan to the October dance, goes on a diet. In art class, she's supposed to bring a red apple to life on paper, but all she wants to do is eat it. Mr. Morrison doesn't like her work anyway: disdainfully, he calls her drawing of a beautiful girl "Barbie." Worse than...