It's Baby Guppy's birthday, and the fish tank friends are having a party. There's just one problem -- parties make Poppy nervous. Poppy is worried she will wear the wrong hat or bring the wrong gift. And when Poppy gets nervous, she puffs up!

When Poppy arrives, she discovers Baby Guppy has a problem, too. Can Poppy stay calm and help save the party?

This adorable and hilarious picture book from two-time Geisel Honor recipient Jonathan Fenske teaches kids that being nervous is okay, and trying new things doesn't always have to be scary.