What is the exposition in Stuart little the book?

In "Stuart Little," the exposition introduces the Little family, who live in New York City, and their unique son, Stuart, a small mouse born into a human family. The story sets the stage for Stuart's adventures and challenges, highlighting his feelings of being different and his desire for belonging. The narrative establishes the charming yet complex dynamics of his relationships with his human family, particularly his love for his older brother, George, and his friendship with a bird named Margalo. This foundation sets the tone for Stuart's journey of self-discovery and adventure.