In The Impossible Craft, Scott Donaldson explores the rocky territory of literary biography, the most difficult that biographers try to navigate. Writers are accustomed to controlling the narrative, and notoriously opposed to allowing intruders on their turf. They make bonfires of their papers, encourage others to destroy correspondence, write their own autobiographies, and appoint family or friends to protect their reputations as official biographers. Thomas Hardy went so far as to compose his own life story to be published after his death, while falsely assigning authorship to his widow....