Focusing on the years 1934 to 1961—from Hemingway’s pinnacle as the reigning monarch of American letters until his suicide—Paul Hendrickson traces the writer’s exultations and despair around the one constant in his life during this time: his beloved boat, Pilar. Whenever he could, he returned to his beloved fishing cruiser, to exult in the sea, to fight the biggest fish he could find, to drink, to entertain celebrities and friends and seduce women, to be with his children. Drawing on previously unpublished material, including interviews with Hemingway’s sons, Hendrickson shows that for all the writer’s boorishness, depression, and alcoholism, and despite his choleric anger, he was capable of remarkable generosity—to struggling writers, to lost souls, to the dying son of a friend. Hemingway’s Boat (Knopf, $30) is both stunningly original and deeply gripping, an invaluable contribution to our understanding of this great American writer, published fifty years after his death.