Host Laura McCandlish interviews acclaimed memoirist and poet Mary Karr, author of the bestselling The Liar's Club about her hardscrabble East Texas childhood and Cherry, her drug-laced, angst-filled coming of age story. With her characteristic dry wit, Karr now returns with Lit. In the searing yet hilarious memoir, Karr descends into alcoholism and madness as a young mother and struggling poet, only to be saved by an unlikely faith. In December, Lit made The New York Times' "The 10 Best Books of 2009" list.