Two popular storybook titans, princesses and dinosaurs, battle to determine who should star in this laugh-out-loud picture book for fans of Shark vs Train and The Book With No Pictures.This is a princess book!No, it's a dinosaur book!No, it's . . . a T. rex book? A dragon book? A rubber ducky book?!From Linda Bailey, award-winning and critically acclaimed author, and Joy Ang, Adventure Time-artist and illustrator of the Mustache Baby series, comes an irresistibly irreverent p