Welcome to the busiest, brainiest place of all: inside YOU.

This kickoff adventure introduces the entire Brainy Bunch, a curious, clever crew of characters who each run an important job inside your head. From breathing and balancing to big feelings and bright ideas, this book gives readers their very first peek behind the scenes.

Each character sparkles just enough to leave kids thinking, "Wait... who was THAT one?" and wanting to meet them again. This is the doorway into the whole series, building excitement, familiarity, and that irresistible feeling of "I need the next book."