Right between the two halves of the brain lives Callie the Connector, the builder of the Brain Bridge. In Callie the Connector and the Brain Bridge, children discover how the brain’s hemispheres communicate with each other through an incredible bundle of neural pathways called the corpus callosum. Callie helps messages travel back and forth so creativity, logic, movement, and understanding can all work together. Through playful rhyme and imaginative storytelling, young readers learn that when the brain’s two sides share information, thinking becomes stronger, faster, and more flexible. Plus, every book includes bonus learning material: a Teacher and Parent Guide, a kid-friendly explainers, discussion starters, hands-on visual activities, and curated resources, giving grown-ups simple, science-backed ways to keep the learning going long after the last page.