7 Sheryl Sandberg
The COO in Facebook, Sheryl Sandberg has net worth of $1.3 billion. The self-made billionaire is ranked among the 100 most powerful people in North America, according to Times Magazine.
She is MBA from Harvard B-School and has the bachelor degree in arts from Harvard College. She was author before being the Chief Operations Officer in Facebook. She witnessed the success from her first book. In March 2013, around 1 million copies were sold of “Lean In: Women Work and the Will to Lead”.