"In November 1999, Joan Didion began seeing a psychiatrist because, as she wrote to a friend, her family had had 'a rough few years.' She described the sessions in a journal she created for her husband, John Gregory Dunne. For several months, Didion recorded conversations with the psychiatrist in meticulous detail. The initial sessions focused on alcoholism, adoption, depression, anxiety, guilt, and the heartbreaking complexities of her relationship...