Abstract
Black holes are our best guide towards understandingproperties of a quantum theory of gravity. On one hand, the study ofblack holes has revolutionized our understanding of string theory as awhole, and on the other hand string theory has come a long way inaddressing puzzles associated with black holes. In this talk I willprovide an overview of these exciting developments. I will discussthat a lot more can be learned about black holes using the hiddensymmetries of string/supergravity theories. I will conclude with somerecent ideas about the microscopic understanding of rotating extremalblack holes.
