What did Jemmy learn in the Whipping Boy?

In "The Whipping Boy" by Sid Fleischman, Jemmy learns about friendship, loyalty, and the importance of standing up for oneself. As the story unfolds, he discovers that true bravery comes from protecting others and that his status as a whipping boy does not define his worth. Through his adventures with Prince Brat, Jemmy evolves from a timid boy into someone who values both his own courage and the bonds he forms with others. Ultimately, he realizes that kindness and understanding can bridge the gap between different social classes.