Facebook COO Sheryl Sandberg is on a mission to change the way we view gender. She's outspoken about how women need to step up and take more responsibility for their own careers, and how we'll never have a truly equal world until men and women are 50/50 in everything. This means having more women leading companies and more men sharing responsibilities at home. We've read the advance copy of Sandberg's upcoming book, Lean In, and have highlighted a few key takeaways here:   // Please enable Javascript to watch this video Produced by Robert LibettiSEE ALSO:  Facebook COO Sheryl ... Read More