In Not Your All-American Girl, Lauren is Jewish and Chinese. It's the 1980s and Lauren and her best friend -- who's blonde with blue eyes -- do everything together. So when they don't have any sixth-grade classes together, they're bummed! They decide that they will audition for their school's musical so that they can at least have that time together. Lauren's audition goes swimmingly, and she's obviously the better singer than Tara (even better than any of the other kids), but when the cast list is released Lauren is only part of the ensemble and Tara is cast as lead. Upon confronting the director, she explains that Lauren's half-Jewish, half-Chinese looks don't match the role of "all-American girl" in the "all-American town" depicted in their musical.
In Center of Gravity, Tessa has become more anxious after losing her mother to breast cancer. This middle-grade novel is set in 1985, which I guess would make it historical fiction. To soothe her anxiety, Tessa cuts pictures of missing kids out of milk cartons. For her, it is crucial that every next milk carton bear the face of a child not already in her collection. So, at lunch, she has to take time sifting through milk cartons to find a new face.