What is Atticus doing at the end of the novel?

Atticus reads Scout a book called The Gray Ghost. This book is exactly like what Happened between the kids and Boo. They misjudged Boo and nobody really knew who Boo was, but he turned out to be a good guy.

are you a student, if so who is your teacher, or are you reading this by yourself, just asking becuse i am a student and i have to write essay, and do qusetions