Born: August 28, 1969, Washington, D.C.
Education: BA, in economics, Harvard College; MBA, Harvard Business School
Early Marker: Chief of staff to U.S. Treasury Secretary Larry Summers
Big Idea: Continues to oversee the drive to grow Facebook's profits, especially now it is a public company; sustaining the Lean In movement she inspired with her book to help professional women achieve their career goals.
Wave of the Future: Gender diversity at work