Book excerpt: This reexamination of Ernesto "Che" Guevara's thoughts on socialism, democracy, and revolution is a must-read for today's activists—or anyone longing to fight for a better world. Fifty years after his death, Guevara remains a symbol to legions of young rebels and revolutionaries. This unique book provides a way to critically engage with Guevara's economic views, his ideas about revolutionary agency, and his conduct as guerrilla commander and government administrator in Cuba. Samuel Farber was born and raised in Cuba. He has written extensively on Cuba and the Cuban Revolution and is author of Cuba Since the Revolution of 1959.