How does Hector change in the novel holes?

In the novel "Holes" by Louis Sachar, Hector, also known as Zero, undergoes significant personal growth. Initially portrayed as quiet and withdrawn, he faces bullying yet demonstrates resilience and intelligence, particularly in his ability to read and solve problems. As the story progresses, he forms a deep friendship with Stanley, which helps him gain confidence and assertiveness. By the end, Hector not only embraces his identity but also overcomes his past struggles, showcasing his transformation into a more self-assured individual.