Book excerpt: In Trading Faces, identical twin sisters Emma (the smart one) and Payton (the popular one) start seventh grade at a brand-new school and discover they’ve been assigned entirely different schedules—so when they get sick of their respective cliques, they secretly switch places. What ensues is a hilarious yet poignant romp from middle school to the mall as the twins learn what it means to be true to yourself, even when the rest of the world isn’t making it easy.