Facebook's COO Sheryl Sandberg is urging women to take charge of their lives, especially in the work force.

In her controversial new book Lean In, Sandberg suggests that women have not tried to be business leaders.

She says it is partially because of a "leadership ambition gap" between men and women.

"We're still enormously held back by these gender stereotypes. We call our daughters bossy. We don't call our sons bossy. We have to change this and say to our daughters she has executive leadership skills," said Sandberg.

Sandberg has two Harvard degrees.

She has worked for Google and now Facebook. She is also a member of the Disney board of directors.