What is communist manifesto? (in your own words)

Communist manifesto is the publication of Karl Marx and Friedrich Engels and introduces the concept of communism.

In addition to this, the publication heavily criticize the capitalist economy system and predicts its downfall due to the significant gap it creates between the bourgeois and the proletariat, in other words the rich and the poor. Mainly because of the resources and wealth distribution inefficiencies and the labor exploitation.