Task: Explanation
Input (English): André Jardin (1912 – 1996) was a French biographer and historian, best known for his studies of Alexis de Tocqueville and 19th century French history. His 1984 biography of Tocqueville, "Alexis de Tocqueville: 1805-1859"—translated into English as "Tocqueville: A Biography" in 1988 by Lydia Davis and Robert Hemenway—was acclaimed as the definitive account of the life and career of the author of "Democracy in America". Question: André Jardin (1912 – 1996) was a French biographer and historian, best known for his studies of Alexis de Tocqueville and 19th century French history, translated into English as "Tocqueville: A Biography" in 1988 by Lydia Davis and Robert Hemenway—was acclaimed as the definitive account of the life and career of the author of "Democracy in America"/De La Démocratie en Amérique, is a classic French text by Alexis de Tocqueville, published in how many volumes? Answer: two
Output (English):  His 1984 biography of Tocqueville, Alexis de Tocqueville: 18051859—translated into English as Tocqueville: A Biography in 1988 by Lydia Davis and Robert Hemenway—was acclaimed as the definitive account of the life and career of the author of Democracy in America.