It's My Birthday Too Author:Lynne Jonell, Petra Mathers (Illustrator) It's Christopher's birthday, and everything is perfect. Except for one thing: his little brother, Robbie. Robbie thinks that it's his birthday, too, and he wants to come to Christopher's party! — Christopher is sure that Robbie will wreck everything -- until Robbie comes up with an inventive way to share his brother's day. — Si... more »mply told and illustrated with bright, childlike illustrations, this hilarious picture book hits the topic of sibling rivalry right on the head.« less