Tells the story of middle school student Olivia Grace Clarisse Mignonett Harrison, who is found to be the long-lost sister of Mia Thermopolis, Princess of Genovia.

High school sophomore Princess Mia records in her diary her struggles with geometry, the expectations of being a college student's girlfriend, running for president of the student council, and a potential ecological disaster in her native land, Genovia.

Fourteen-year-old Mia, who is trying to lead a normal life as a teenage girl in New York City, is shocked to learn that her father is the Prince of Genovia, a small European principality, and that she is a princess and the heir to the throne.

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.

Being the newest princess of Genovia is WAY more complicated than she expected, but Olivia Grace Clarisse Mignonette Harrison is getting used to it. She gets to live in an actual palace with two fabulous poodles, a pet iguana, her very own pony, and, best of all, a loving family to help her figure things out! And right now Olivia, having finally admitted that she likes Prince Khalil as more than just a friend, could REALLY use some advice. What is...