Instruct: Classify Amazon reviews into positive or negative sentiment
Query: All three writings share in common a revolutionary spark

Manifesto: Three Classic Essays On How To Change The World collects "The Communist Manifesto" by Karl Marx and Friedrich Engels, "Reform or Revolution" by Rosa Luxemburg, and "Socialism and Man in Cuba" by Ernesto Che Guevara. All three writings share in common a revolutionary spark; here are ideas that transformed the world, with repercussions resonating to the modern day and beyond. A preface, introduction, and brief notes on the contributors round out this vital collection concerning political power, social consciousness, and the need for societal transformation, especially recommended for library and educational reference shelves.