More than fifty years since the passage of the Equal Pay Act, the wage gap still hovers at 80 percent. Half a billion dollars are spent annually on corporate diversity programs, yet only 5 percent of CEOs in the Fortune 500 are women. Lean Out is an ambitious attempt to answer the question few dare to ask: What have we gotten wrong about women at work?  Based on in-depth research and personal experiences, Lean Out is inspired by the journey of Marissa Orr, a single mom of three trying to succeed in her fifteen-year career at the world's top tech giants. In an eye-opening account, Orr exposes the systemic dysfunction at the heart of today's most powerful corporations and how their pursuit to close the gender gap has come at the expense of female well-being.