Oprah Winfrey had to overcome a lot of hardships as she built a media empire and became the first African-American female billionaire. A student of life, and a dedicated philanthropist, Oprah’s book, What I Know for Sure, is a collection of her essays from her popular column in the Oprah Magazine where she has been pouring her heart and soul in confiding with readers her experiences of life lessons for 14 years. Through these essays Oprah shares her wisdom, inspiration and insights she has gathered through her achievements and challenges. The book is organized by the themes: joy, connection, gratitude, power, clarity, awe, and resilience