Oprah Winfrey is one of the most widely-known and inspirational women in the world. She is best-known for her internationally-acclaimed and groundbreaking talk show, The Oprah Winfrey Show, which she hosted for 25 years. After launching her own television network--the Oprah Winfrey Network--and production company Harpo Productions, and co-writing five books as well as appearing in several films, she became the first African American female billionaire. She is a media leader, talk show host, TV producer, actress, and philanthropist. Considered by many as one of the most influential women in the world, her powerful impact on society is even known as the "Oprah effect". In the course of her remarkable life journey, she has scored success after success.