What is the author's style in The Face on the Milk Carton by Caroline B. Cooney?

The language in the novel is accessible for young adults and does not interfere with the understanding of the story. Names as linked with identity are important to the story. At the beginning of the novel, the author uses a play on names that foreshadows Janie's identity crisis. Having friends with more memorable names, Janie Johnson feels that her name is boring and tries to change it to Jayne Johnstone. After discovering the face on the milk carton, she then believes that her name is Jennie Spring. Later on in the story, Janie learns that the Johnson's last name used to be Javensen, which leads her to believe that her name is really Janie Javensen. Janie's changing names reflects her changing identity.