The Diamond Age is a science fiction novel by Neal Stephenson. Set in a future where nanotechnology has transformed society, the story follows a young girl named Nell who receives a stolen copy of a highly advanced interactive book. As Nell navigates through a world of social inequality and technological wonders, she becomes entangled in a larger conflict that could change the course of civilization. The Diamond Age is a thought-provoking exploration of transhumanism and its impact on society.