Winnie's thirteenth year brings many joys and challenges as she negotiates her relationship with her first boyfriend and realizes that change is inevitable in her friends, family, and even herself.
Twelve-year-old Addie tries to cope with her mother's erratic behavior and being separated from her beloved stepfather and half-sisters when she and her mother go to live in a small trailer by the railroad tracks on the outskirts of Schenectady, New York.
Ally, Bree, and Jack meet at Moon Shadow, an isolated campground, to watch a total eclipse of the sun; but soon they begin to learn a great deal about themselves, each other, and the universe.
Annemarie "Shug" Wilcox, facing junior high school, disgruntled with her appearance, and confused by changing relationships, decides there is nothing worse than being twelve-years-old.
Marylin and Kate have been friends since nursery school, but when Marylin becomes a middle school cheerleader and Kate begins to develop other interests, their relationship is put to the test.
After spending her life with her mentally retarded mother and agoraphobic neighbor, twelve-year-old Heidi sets out from Reno, Nevada, to New York to find out who she is.
In a series of letters to her absent father, twelve-year-old Emily Ebers deals with moving cross-country, her parents' divorce, a new friendship, and her first serious crush.