The main theme is about the power of the human spirit. The protagonist, Melody, has cerebral palsy but has a brilliant mind. It shows her struggle to be recognized and included in a world that often overlooks her abilities.
I'm not entirely sure if there is a book titled 'Out of My Mind' that is specifically historical fiction or nonfiction. It could potentially be either, depending on its content. If it's a story set in a historical context and the plot and characters are fictional but the backdrop is historical, it would be historical fiction. If it's a true account of someone's experiences or a historical event, it would be nonfiction.