"Lean In" is a book written by Sheryl Sandberg, the former Chief Operating Officer of Facebook. Published in 2013, it encourages women to pursue their ambitions and take leadership roles in their careers. Sandberg discusses the challenges women face in the workplace and offers practical advice on overcoming these obstacles. The book also emphasizes the importance of support systems, both at work and home. Sandberg advocates for open conversations about gender equality and encourages both men and women to work together to create a more inclusive environment. "Lean In" has sparked discussions about women's empowerment and workplace dynamics globally.