I loved this book. It was a great read and I think I've actually read something in the same series when I was younger. It's set in a "diary" format and is about an ordinary schoolgirl called Mia who becomes a princess.
Yes, she becomes a princess. Turns out her dad is secretly a prince and she has to deal with that. She isn't leaping for joy at first, oh no, her best friend stops speaking to her around the same time, and the boy she dates seems to not care about anything but her title.
But it's really quirky and funny and full of personality. I enjoyed her as a character and liked the other characters too. It's more slice of life and friendship really, not huge amounts of drama. It was pretty satisfying overall.