Little Brother is a young adult novel by Cory Doctorow. Set in a near-future San Francisco, the story follows Marcus, a tech-savvy teenager who finds himself caught in the aftermath of a terrorist attack. As the city becomes a surveillance state, Marcus and his friends use their hacking skills to fight back against the encroaching government control. Little Brother is a thrilling and thought-provoking read that explores themes of privacy, freedom, and the power of technology.