Little Brother, written by Cory Doctorow, is a young adult novel that explores the impact of surveillance on society. The story follows Marcus, a teenage hacker, who becomes a target of the Department of Homeland Security after a terrorist attack in San Francisco. Marcus fights back against the surveillance state, using his technological skills to expose the government's abuses of power. This fast-paced and thought-provoking book raises important questions about privacy, security, and the balance between individual rights and national security.