Written By: Oprah Winfrey Narrated By: Oprah Winfrey Publisher: Macmillan Audio Date: September 2014 Duration: 3 hours 55 minutes CLICK HERE to Listen or Download What I Know For Sure by Oprah Winfrey AUDIOBOOKS audio books free download mp3 What I Know For Sure | best free audio books What I Know For Sure | full length audio books free What I Know For Sure