Research and describe the Austrian school of economic thought and the Keynesian school of thought. What are the major differences? Who are the major

Research and describe the Austrian school of economic thought and the Keynesian school of thought.  What are the major differences?  Who are the major proponents?  Which school of thought (or perhaps it's not even one of these) do you think best describes current economic thought that directs and influences economic policy in today's American society.