Have you met Grumbletroll? If not, be sure not to miss his first picture book that launches this hilarious series about how this grumpy but lovable troll learns to cope with his anger--perfect for offering young children a playful way of dealing with emotions that offers a lot of space for conversation, role-playing, and the reader's own thoughts. No! No! No! The little troll is terribly angry. It's like there's a storm inside him, with lightning shooting out of the sky and thunder rumbling loudly. Yes, that's exactly how he feels: like a rumbling and grumbling troll. A grumbletroll! Eventually his friends get fed up with his yelling and go off to play without him. Will the little troll be able to make up for his bad behavior and win back the favor of his friends? The Grumbletroll serves as a model to help children recognize and learn ways to stop fits of rage that we all struggle with when things don't go our way.