While modern criticism focuses on the cultural legacy of Wilder’s work, no children’s writer experienced a greater outpouring of affection from her dedicated readers than did Laura Ingalls Wilder. Her powerful and lasting hold on the hearts, minds, and imaginations of her readers is an important aspect of that legacy and a testament to the unique appeal of her work. Many children wrote to Wilder as if she were their own grandmother-or their invisible friend. Until shortly before her death, Wilder personally answered every letter she received from her fans. An oversized mailbox was installed at Rocky Ridge Farm to accommodate the overwhelming volume of mail.