Hartmut Rosa is a leading social theorist and his books on social acceleration and resonance have become milestones in discussions about the problems and promises of late modern societies. Rosa not only presents a critical diagnosis of our times but also searches for innovative solutions. This new collection of Rosa-s essays provides an overview of his work and explores key topics and concepts in depth. Among the topics discussed are Charles Taylor-s account of alienation, self-interpretation and social critique; the theory of acceleration and the challenges for identity formation and democratic politics in the high-speed society; the theory of resonance and its relation to alienation and uncontrollability; and the relation between social theory and moral philosophy. Among other things, this volume highlights the influence of Charles Taylor-s social philosophy on Rosa-s work and it brings out the architecture of Rosa-s social theory, in particular the opposition between the concepts of