A young woman accidentally turns in a private story from her journal instead of an English assignment and becomes a best-selling author almost overnight.

Isabel and Nicki Hoffman may be twins, but they're each one of a kind. Isabel loves dancing with her friends, while Nicki prefers skateboarding alone. In December 1999, the girls create a list of challenges to complete before midnight on New Year's Eve. But just before the new millennium arrives, disaster strikes. Will the most momentous night of their lives be a twin win or a sister setback?

Interviews with more than 100 teenage girls provide a look at various aspects of friendship between young women.

Twelve-year-old Harper loves to dance and is a rising star in Connecticut when her parents move her to Florida and she must prove herself to The Bunheads in order to compete.