German social theorist Friedrich Engels collaborated with Karl Marx on The Communist Manifesto in 1848 and on numerous other works. With the help of Friedrich Engels, Karl Marx wrote The Communist Manifesto (1848) and Das Kapital (1867-1894). Friedrich Engels, a philosopher, political, historian, journalist, revolutionary, and also a businessman, closest befriended his lifelong colleague. https://en.wikipedia.org/wiki/Friedri...
Manifiesto del Partido Comunista
Karl Marx & Friedrich Engels
Socialism: Utopian and Scientific
Friedrich Engels
The Origin of the Family, Private Property and the State
The Principles of Communism
The Condition of the Working Class in England
Anti-Dühring: Herr Eugen Dühring’s Revolution in Science
On Authority
Ludwig Feuerbach And the Outcome of Classical German Philosophy
Dialectics of Nature
The Part Played By Labour in the Transition From Ape to Man
The Housing Question