Perfect Princess

Perfect Princess, also known as The Princess Files in the United Kingdom, is a companion novel of The Princess Diaries. It was written by Meg Cabot, and illustrated by Chesley McLaren.

Description
"Do you know…

Princess Amelia Mignonette Grimaldi Thermopolis Renaldo of Genovia (aka Mia) and subjects look to the world's princesses for the answers to these burning questions and more. Big and small, old and new, real and imaginary—all kinds of princesses exhibit perfection in their own way. Don't delay: Find out what made this royal roster rule, and begin your own reign!"
 * How to wield the incredible power of the tiara?
 * When your prince deserves to be whacked in the head with a shoe?
 * What it takes to achieve immortality… or at least make an unforgettable entrance?
 * Why allowing the populace to eat bread and not just cake is of critical importance?
 * What to do as a houseguest should you find a pea under your mattress?
 * What makes a princess perfect?