While Mia tries to get over breaking up with her boyfriend, she discovers a diary kept by a former princess of Genovia from the 1600s, the contents of which could change the fate of her country forever.

Princess Mia's junior year in high school begins with a difficult course load, a crazy student council race, Grandmere's search for temporary lodging, and learning that her boyfriend is moving to Japan for a year, partly because she will not sleep with him.

In a series of humorous diary entries, fifteen-year-old Mia tries to figure out how to raise money for the bankrupt student government at her school while also worrying about how to become a "party girl."

Having recently discovered she is the sole heir to the throne of a tiny European principality, fourteen-year-old Manhattan resident Mia writes in her journal about her attempts to cope with this news, as well as with more typical teenage concerns.

Allie's theatrical hopes are crushed when, instead of being cast as the princess, she is given the role of the evil queen in the fourth-grade class play.

Guided by her rules, nine-year-old Allie works to get past being just the new girl at school, eagerly awaits the arrival of her kitten, and faces turmoil when her grandmother visits while the family is still settlling into their new home.

Nine-year-old Allie Finkle has rules for everything and is even writing her own rule book, but her world is turned upside-down when she learns that her family is moving across town, which will mean a new house, school, best friend, and plenty of new rules.

Anticipating her sister's coronation, Princess Olivia visits with an American friend, while dealing with her cousin's gossiping about her relationship with Prince Kahlil.

Olivia Grace Clarisse Mignonette Harrison still finds it hard to believe that she's a real live PRINCESS OF GENOVIA. Not only does she get to live in an actual palace with her newly discovered family and two fabulous poodles (who all love her and think that she's anything but ordinary!) but she also gets her very own PONY! Of course, things aren't going exactly like she imagined. Her half-sister Mia is very busy learning how to take over the country...