| Chapter | | Page |
| | [Introduction:] | |
| | I. | The Significance of Marx | [ix.] |
| | II. | The Work of Hegel | [xiii.] |
| I. | [Parents and Friends:] | |
| | I. | Marx's Apprenticeship | [1] |
| | II. | Student | [3] |
| | III. | Beginnings of Public Life | [11] |
| II. | [The Formative Period of Marxism:] | |
| | I. | The Franco-German Year Books | [15] |
| | II. | Friendship with Friedrich Engels | [19] |
| | III. | Controversy with Bauer and Ruge | [21] |
| | IV. | Controversy with Proudhon | [26] |
| III. | [Years of Agitation and Varying Fortunes:] | |
| | I. | The Revolutionary Spirit of the Forties | [39] |
| | II. | The Communist Manifesto | [41] |
| | III. | The Revolution of 1848 | [48] |
| | IV. | Days of Cloud and Sunshine in London | [51] |
| | V. | The International | [54] |
| | VI. | The Paris Commune | [59] |
| | VII. | The Evening of Life | [60] |
| IV. | [The Marxian System:] | |
| | I. | The Materialist Conception of History | [65] |
| | II. | Classes, Class Struggles and Class-Consciousness | [78] |
| | III. | The Role of the Labour Movement and the Proletarian Dictatorship | [84] |
| | IV. | Outlines of the Economic Doctrines | [93] |
| V. | [Conclusion] | 125 |