The Communist Manifesto, originally the Manifesto of the Communist Party (German: Manifest der Kommunistischen Partei), is an 1848 political document by German philosophers Karl Marx and Friedrich Engels. Commissioned by the Communist League and originally published in London just as the Revolutions of 1848 began to erupt, the Manifesto was later recognised as one of the world's most influential political documents.

This 1902 essay collection by the Russian naturalist and anarchist philosopher Peter Kropotkin explore the role of mutually beneficial cooperation and reciprocity in the animal kingdom and human societies. It is an argument against theories of social Darwinism that emphasize competition and survival of the fittest, and against the romantic views of writers such as Jean-Jacques Rousseau who thought that cooperation was motivated by universal love.

State and Revolution (1917) describes the role of the state in society, the necessity of proletarian revolution, and the theoretic inadequacies of social democracy in achieving revolution. It describes the inherent nature of the state as a tool for class oppression, a creation born of one social class' desire to control all other social classes. Whether a dictatorship or a democracy, the state remains in the control of the ruling class.

Published in 1894, 11 years after the death of Marx himself, Capital Volume 3 was the product of the untiring and meticulous work of Friedrich Engels working from Marx’s outline and notes and carried the subtitle The Process of Capitalist Production as a Whole. In seven parts, Marx and Engels were determined to demonstrate that private property, competition and the market economy driven by the profit motive must lead to the demise of capitalism. 

The Communist Manifesto (1848), Marx and Engels' revolutionary summons to the working classes, is one of the most important and influential political theories ever formulated. After four years of collaboration the authors produced this incisive account of their idea of Communism, in which they envisage a society without classes, private property or a state. They argue that increasing exploitation of industrial workers will eventually lead to a revolution in which Capitalism is overthrown.