The ideas and theses of Karl Marx have experienced a renaissance in recent years, both in public debate and in academia, as capitalism has unfolded globally but is increasingly unable to fulfill its promise of social stability. Influential, controversial, and eloquent like few others before and after him, Marx wrote extensively on philosophy, economics, politics, and sociology. This anthology brings together his most important texts, provides introductory commentary, and demonstrates how crucial Marx is for the analysis of contemporary capitalism.