Facebook COO Sheryl Sandberg is making waves with her new book, Lean In: Women, Work, and the Will to Lead, which encourages women to step up and take a seat at the conference table. On Good Morning America earlier this week, Sheryl said that the book is about "believing that we can do anything a boy can do."
The Facebook COO certainly knows what it takes to make it to the top — she's part of an unfortunately small circle of women who currently hold a top C-suite executive spot across major technology companies. From IBM's first female CEO in 100 years to the woman who cofounded a smartphone empire, learn more about technology's leading ladies in the gallery.