Deenie

Deenie is a 1973 young adult novel written by Judy Blume.
Deenie chronicles the life of 13-year-old Wilmadeene "Deenie" Fenner, whose mother is determined to have her become a model. At the same time, Deenie's 16-year-old sister, Helen, who is academically proficient, is being pushed by their mother, Thelma, to keep her grades up so that she can eventually become a doctor or a lawyer. One day, Deenie is diagnosed with scoliosis, and is prescribed a body brace to wear for the next four years. At the same time, Helen has fallen in love with Joe, a charming and romantic young gentleman who works for the family business, a gas station. Thelma, upset that her plans for her daughters are coming undone, has Joe fired and still exhorts Deenie to pursue a modeling career once she stops wearing the back brace. Fearful that Helen hates her because Thelma's excuse for letting Joe go was because of the family's doctors' bills, Deenie is astonished to learn that Helen refuses to blame her for Joe's departure, and the sisters close ranks.