An interactive social-emotional picture book that helps kids practice real coping strategies, right alongside the story.Brimble and the Rainy Heart Day is a cozy, emotionally rich story that helps children ages 3 to 8 recognize, name, and work through uncomfortable emotions without needing to push them away. Designed by a teacher and mother of two toddlers, this book blends fantasy with developmentally appropriate strategies for emotional regulation. It also gives parents a way to practice those skills alongside their child.Meet Brimble, a tender little Mufflewump who wakes up with a heavy, rainy heart and no idea why. As the day goes on, his discomfort grows. He tries to stay busy, shake it off, or hide what he's feeling... until it all pours out in a full-blown emotional storm (the dreaded tantrum). That's when Mother Mind appears - the wise, guiding voice who represents the calm, thinking part of the brain. She offers Brimble a magical tool called the Forecast Stone, which helps him understand his feelings, sit with them, and find his calm again.What makes this book different is its built-in interactivity. Children are invited to tap like rain, shake like thunder, and check their own "emotional weather" alongside Brimble. This makes the story a shared, sensory-rich coping experience rather than just a read-aloud.At the end, a "Grown-Up's Guide to Magic" offers simple, scripted strategies that parents and educators can use right away. It includes movement-based prompts and language that helps children feel seen, safe, and supported during emotional moments.Whether you're managing toddler tantrums, teaching emotional vocabulary, or looking for a better way to connect during meltdowns, Brimble and the Rainy Heart Day is a gentle, effective tool to help children build lifelong emotional resilience.