As part of Made for Freedom's 31 Days of Strength and Dignity we are also showcasing TED talks by powerful women. As the COO of Facebook Sheryl Sandberg is one of the biggest role models in the world and an inspiration for women looking to break the glass ceiling. In this famous TED Talk Sheryl Sandberg looks at why a smaller percentage of women than men reach the top of their professions — and offers 3 powerful pieces of advice to women aiming for the C-suite. She talks about how several women, in anticipating having a family, "lean back" from leading at work. After her TED Talk took off, Sandberg wrote the book Lean In, which has spent nearly a year on the New York Times Bestseller list.