In this riveting”(The New York Times) work of nonfiction, a sociologist infiltrates the world of Chicago’s crack-dealing gangs First presented in Freakonomics, the story of a young sociologist who embedded himself in Chicago’s most notorious gang and captured the world’s attention. Gang Leader for a Dayis the fascinating full story of how Sudhir Venkatesh gained entrance into the lives of a group of drug-dealers and went on to witness—and participate in—events that have rarely been described in print. A brazen, page-turning, and fundamentally honest view of the morally ambiguous, highly intricate, often corrupt struggle to survive in an urban war zone, it is also an emotional and complicated look at the friendship that develops between the sociologist and a gang leader, two ambitious men a universe apart.