The Manifesto begins with a preamble: a spectre is haunting Europe, the spectre of Communism. All European powers, from Pope to police-spy, have combined against it. Marx and Engels respond by publishing the Communists' views and aims openly. What follows is a short, densely argued political pamphlet in four sections.
Section I, Bourgeois and Proletarians, lays the historical and analytical foundation. All previous history has been a sequence of class struggles: freeman against slave, lord against serf, guild-master against journeyman. The current epoch has simplified this into a confrontation between two great hostile camps: Bourgeoisie and Proletariat. The Manifesto traces how the bourgeoisie grew out of feudal society, revolutionised production through modern industry and the world market, and in doing so created the conditions of its own undoing. The modern labourer sinks deeper as industry advances, becoming a pauper. Society can no longer live under the bourgeoisie; its fall and the victory of the proletariat are declared equally inevitable.
Section II, Proletarians and Communists, addresses the Communists' relationship to the broader working-class movement. Communists do not form a separate party with sectarian principles; they represent the interests of the movement as a whole and push it forward. The section defends the abolition of private property (meaning bourgeois property, capital) against standard objections about freedom and family. It closes with a ten-point programme for transitional measures in advanced countries, including progressive taxation, abolition of inheritance, centralisation of credit and transport, and free public education.
Sections III and IV survey competing socialist currents, including feudal socialism, bourgeois socialism, and utopian socialism, and explain why the Communists oppose or partially support various opposition parties in different countries. The Manifesto is consistent throughout: it judges every position by whether it advances the proletarian movement toward political power.
The Manifesto ends with a call to action. Communists disdain to conceal their aims. The proletarians have nothing to lose but their chains. They have a world to win. Working men of all countries are called to unite. The brevity and momentum of the text were deliberate: it was written as an instrument for a movement that was already in motion.