What is the best part of kathryn erskine's mockingbird?

The best part of Kathryn Erskine's "Mockingbird" is its poignant exploration of grief and the challenges of living with Asperger's syndrome through the eyes of its young protagonist, Caitlin. The novel beautifully illustrates her journey towards understanding and empathy as she navigates her emotions and relationships in the aftermath of her brother's death. Erskine's sensitive portrayal of Caitlin's perspective invites readers to appreciate the complexities of communication and connection, making it a deeply moving and impactful story.