The Diamond Age, written by Neal Stephenson, is a science fiction novel set in a future where nanotechnology has transformed society. The story follows Nell, a young girl who receives a stolen copy of an interactive book called the Young Lady's Illustrated Primer. As Nell navigates through a world of political intrigue and cultural revolution, the book serves as her guide and mentor. The Diamond Age explores themes of transhumanism, education, and the power of technology to shape society.