What were the major works of Jean Jacques Rousseau?

Jean
Jacques Rousseau (1712 €“ 1778) is widely acknowledged as on of the most important thinkers of
the eighteenth-century European Enlightenment. The areas he most influenced were Romanticism,
education, and political philosophy. His most important works were:

•  A Discourse on the Arts and Sciences
  (nonfiction, 1750/1): argues that modern developments in arts and science did not
  improve moral character; developed the concept of the "Noble Savage". 


• Of the Social Contract, Principles of Political Right
  (nonfiction, 1755/61): a treatise which argued that legitimate sovereignty was always with the
  people and that governments were only legitimatized by the people they ruled.


• Julie, or  (novel, 1761): a romantic novel emphasizing the
  virtues of nature and the simple rural life. 
• Emilius and
  Sophia: Or, a New System of Education (nonfiction, 1762-1763): argues for
  individualized instruction based on children's innate abilities and interests and balancing
  study with physical activity and exploration of nature,
• Theof
  (autobiography, 1783-1790): posthumously published, and unusually frank for the
  period.