This handbook presents the work of Jean-Jacques Rousseau (1712 1778), one the most important and versatile theorists of the Enlightenment. The works shows that the impact of Rousseau s work, which spans political, sociological, moral-philosophical, pedagogical, linguistic, botanical, and compositional domains extends beyond the eighteenth century, and is still relevant today. This handbook does not only present the richness of Rousseau s oeuvre and its diverse interconnections, but also outlines recent research trends, offering a range of interpretive approaches, and raising questions concerning coherence and contradiction, and demonstrates as such the continued relevance of Rousseau s writings.