"After film critic Gene Siskel asked her, "What do you know for sure?" Oprah Winfrey began writing the "What I Know For Sure" column in O, The Oprah Magazine. Saying that the question offered her a way to take "stock of her life," Oprah has penned one column a month over the last fourteen years, years in which she retired The Oprah Winfrey Show (the highest-rated program of its kind in history), launched her own television network, became America's...

A collection of essays from Winfrey's "What I Know For Sure" column in O, The Oprah Magazine. Organized by theme, these essays offer a rare and powerful glimpse into the mind of one of the world's most extraordinary women.