In the tumultuous first decade of the Cuban Revolution, Fidel Castro and other leaders saturated the media with altruistic images of themselves in a campaign to win the hearts of Cuba's six million citizens. In Visions of Power in Cuba (Univ of NC, $60.50), Lillian Guerra argues that these visual representations explained rapidly occurring events and encouraged radical change and mutual self-sacrifice.  Mass rallies and labor mobilizations of unprecedented scale produced tangible evidence of what Fidel Castro called "unanimous support" for a revolution whose "moral power" defied U.S. control. Using previously unexplored sources, Guerra focuses on the lived experiences of citizens, including peasants, intellectuals, former prostitutes, black activists, and filmmakers, as they struggled to author their own scripts of revolution by resisting repression, defying state-imposed boundaries, and working for anti-imperial redemption in a truly free Cuba.