Oprah calls Sheryl Sandberg's book, 'Lean In,' the 'new manifesto for women in the workplace.' Watch as Sheryl shares three lessons for every working woman: believe in yourself, make your partner a real partner, and don't leave before you leave.

At 14, Mary Williams moved from the poverty-stricken streets of East Oakland, California, to Jane Fonda's hacienda in Santa Monica, California, becoming the adopted daughter many people didn't know Jane had. Now, Mary is sharing her story in her memoir, 'The Lost Daughter.' Watch as Jane and Mary sit down with Oprah to discuss their relationship.

Oprah visits Oscar-winning actress Jane Fonda and her adopted African-American daughter, Mary Williams, for their first-ever interview together. Later, Oprah and Jane speak one-on-one at Jane's Beverly Hills home.

When Justice Sonia Sotomayor was a student at Cardinal Spellman High School, she studied debate. To this day, Justice Sotomayor says she loves the excitement and engagement of a heated conversation. Find out why some lawyers confuse her intensity for hostility.

Justice Sonia Sotomayor and her younger brother were raised by their mother, Celina. What values did this single, working mom instill in her very successful children? Justice Sotomayor discusses her mother's fierce love of education and achievement.

Justice Sonia Sotomayor says that when Supreme Court Justices Ruth Bader Ginsburg and Sandra Day O'Connor graduated from law school, they had a difficult time finding good jobs. By the time Justice Sotomayor entered the workforce, she says, things had improved for female attorneys, but she still experienced casual sexism. Watch as she tells Oprah about being called 'honey' in the courtroom.

Sheryl Sandberg says that while studying at Harvard College, she attended a speech that helped her learn to 'lean in' as a businesswoman. Watch as she discusses the imposter syndrome and explains why a woman's success is often attributed to luck or help from others.

For the past 30 years, Sheryl Sandberg has relied on the love and support of her best friends. Meet two members of her personal 'lean-in circle' and find out what happens when they try to limit their children's Facebook time.

Oprah and Facebook COO Sheryl Sandberg discuss how businesswomen are judged differently than their male counterparts.

Sheryl Sandberg says that in high school, she spent more time worrying about getting a date to the prom than she did worrying about math. For that very reason, Sheryl says, no one wants to be the smartest girl in class. A girl would rather be invited to the dance. How can we change that about our society? Oprah shares one idea.