The book was released on May 19, 2015 through Feiwel & Friends and follows Olivia, a bi-racial 12-year-old who finds out she is the half-sister of Princess Mia Thermopolis. Royal Wedding Disaster. Read the excerpt .

FROM THE NOTEBOOKS OF A MIDDLE SCHOOL PRINCESS a middle grade series writtedn through the illustrated diaries of a spunky new heroine, 12 year old Olivia Grace, who happens to be the long lost half-sister of Princess Mia Thermopolis.The books are written and illustrated by Meg Cabot.The book was published on May 19, 2015 by Feiwel & Friends.

From the Notebooks of a Middle School Princess. Olivia Grace Clarisse Mignonette Harrison is a completely average twelve-year-old: average height, average weight, average brown hair… From the Notebooks of a Middle School Princess is a 2015 children's novel written and illustrated by Meg Cabot and a spinoff of the author's young adult fiction series, The Princess Diaries. May 10, 2016.

“Author Meg Cabot is ready to put her tiara back on [with] a new character, Olivia Grace.”USA Today Book 1 From the Notebooks of a Middle School Princess. Royal Crush. Of the novel, Cabot has stated that th It was released in 2017. Read the excerpt .

May 10, 2016. From the Notebooks of a Middle School Princess: Royal Crush is the third volume of the middle grade series sequel to the Princess Diaries Series by Meg Cabot. Return to the world of Meg Cabot's bestselling and beloved Princess Diaries series in From the Notebooks of a Middle School Princess―this time through the illustrated diary of a spunky new heroine: Princess Mia's long lost half-sister, Olivia! Enter to Win a Free Book! The story of Olivia's adventures is written diary-style with the author's illustrations mixed in. Read the excerpt . Reviews June 2, 2015. Olivia Grace Clarisse Mignonette Harrison is a completely average twelve-year-old: average height, average weight, average brown hair of average length, average brown skin and average hazel eyes. From the Notebooks of a Middle School Princess is a middle-grade spin-off series of The Princess Diaries --this time through the illustrated diary of a spunky new heroine: Princess Mia's long lost half-sister, Olivia! Royal Day Out. August 1, 2017.