The Diamond Age is a science fiction novel written by Neal Stephenson. It is set in a future where nanotechnology has advanced to the point where it can create highly advanced materials and devices. The story follows Nell, a young girl who receives a stolen copy of a highly advanced interactive book called the Young Lady's Illustrated Primer. As Nell navigates through a world of political intrigue and cultural clashes, the Primer becomes her guide and mentor. The Diamond Age explores themes of education, technology, and the impact of cultural differences on society.