Chapter 1: Introduction.- Chapter 2: Friedrich Engels at 200 Revisiting his maiden paper "Outlines of a Critique of Political Economy" (1844).- Chapter 3: The Internal Contradiction of Land Rent and Young Engels' Critical Theory of Private Ownership.- Chapter 4: Engels, Werner Sombart, and the significance of Marx's economics.- Chapter 5: Friedrich Engels and positivism - an attempt at classification.- Chapter 6: Engels' Conceptions of Dialectics, Nature and Dialectics of Nature.- Chapter 7: Friedrich Engels and the revolution.- Chapter 8: Remarks on the embarrassed publishing history of Engels, Die Lage der arbeitenden Klasse in England.- Chapter 9: "Economic facts are stronger than politics" Friedrich Engels, American Industrialization, and Class Consciousness.- Chapter 10: Engels' strategic advice to the representatives of the Italian labour movement.- Chapter 11: Friedrich Engels and Electricity.- Chapter 12: Two sides of young Friedrich Engels: private letters and professional studies.