This e-book includes three essays, one is a comparison between the Cuban and the Nicaraguan revolutions. The second essay is about Augusto Cesar Sandino, the symbol of the Sandinista guerrilla which successfully overthrew the dictatorship of Anastasio Somoza and the third essay is a psychological profile of the legendary figure of Ernesto Che Guevara, whose thoughts and actions probably inspired both the Cuban and the Nicaraguan revolution.