The Princess Diaries Books 1, 2 and 3 by Meg Cabot

“ Mia Thermopolis is pretty sure there’s nothing worse than being a 5 foot nine, flat chested freshman, who always happens to be flunking algebra. First mom announces that she’s dating me as algebra teacher. Then Dad has to go and reveal that he is the crown prince of Genovia. And guess who still doesn’t have a date for the Cultural Diversity Dance?”