Acts of kindness, both big and small, play a crucial role in Auggie's life. From Summer's decision to sit with Auggie at lunch to Jack Will's bravery in defending him, these moments show how compassion can transform lives. The story emphasizes that kindness can create a more inclusive and welcoming environment for everyone.

A central theme in "Wonder" is the importance of looking beyond physical appearances to recognize the shared humanity that connects us all. Initially, Auggie's classmates struggle to see past his facial difference, but as they get to know him, they discover his intelligence, humor, and kindness. The book encourages readers to challenge their own biases and embrace the uniqueness of every individual.

Auggie's journey teaches him that true friendship is not about fitting in but about being valued for who he truly is. He learns that he doesn't need everyone's approval as long as he remains true to himself. This theme highlights the importance of self-acceptance and staying true to one's values, even in the face of adversity.