Book excerpt: Political Rock features luminary figures in rock music that have stood out not only for their performances, but also for their politics. The book opens with a comparative, cultural history of artists who have played important roles in social movements. Individual chapters are devoted to The Clash and Fugazi, Billy Bragg, Bob Dylan, Rage Against the Machine, Pearl Jam, Sinead O'Connor, Peter Gabriel, Ani DiFranco, Bruce Cockburn, Steve Earle and Kim Gordon. These artists have been chosen for their status as rock musicians and connections to political moments, movements, and art. The artists and authors show that rock retains a critical strain, continuing a tradition of rock politics that matters to fans, activists, and movements alike.