* The Adventures of Huckleberry Finn: Tom Sawyer's Comrade (1884)
*The War for Southern Independence: A True History of Its Causes, Course, and Results* (1892)
*The Life of Napoleon Bonaparte: A History of the Consular and Imperial Reign* (1895)
*The Woman Question in Europe* (1884)
*A Manual of American Literature* (1898)
*The Life and Writings of Thomas Jefferson* (1901)
*A History of the United States for Schools* (1910)
*The Great War: Its Causes and Consequences* (1914)
*The History of the World: From the Earliest Times to the Present Day* (1921)
Children's Books:
*The Log Cabin Boy: A Story of Old Kentucky* (1887)
*A Journey to the Center of the Earth: From the French of Jules Verne* (1871)
*Around the World in Eighty Days: From the French of Jules Verne* (1873)
*The Swiss Family Robinson: From the German of Johann David Wyss* (1876)
*Twenty Thousand Leagues Under the Sea: From the French of Jules Verne* (1878)
*The Mysterious Island: From the French of Jules Verne* (1880)
*The Giant Killer: And Other Stories* (1891)
*The Wonderful Wizard of Oz: A Faithful Narrative of the Surprising Adventures of Dorothy, a Little Girl of Kansas, Who Was Hurried Away in a Cyclone from Her Uncle's Farm and Whirled Over the Great American Desert, and Who Afterwards Traveled Through the Land of the Munchkins, the Winkies, the Wogglebugs, and Other Astonishing Countries, Where She Met Many Strange and Wonderful People, and Had Many Exciting and Thrilling Experiences* (1900)
Short Stories
*The Private Life of Henry VIII* (1911)
*The Man Who Could Not Die* (1912)
*The Phantom Millionaire* (1914)
*The Case of the Missing Man* (1916)
*The Seven Wonders of the World* (1921)
*The Twelve Labors of Hercules* (1923)
*Myths and Legends of the World* (1925)
*The Iliad and the Odyssey* (1927)
*The Aeneid* (1929)
Biographies:
*Benjamin Franklin: A Biography* (1887)
*George Washington: A Biography* (1889)
*Abraham Lincoln: A Biography* (1891)
*Thomas Jefferson: A Biography* (1893)
*Andrew Johnson: A Biography* (1897)
*Ulysses S. Grant: A Biography* (1898)
*Robert E. Lee: A Biography* (1899)
*William McKinley: A Biography* (1901)
*Theodore Roosevelt: A Biography* (1903)
*Woodrow Wilson: A Biography* (1912)
*Warren G. Harding: A Biography* (1921)
*Calvin Coolidge: A Biography* (1924)
*Herbert Hoover: A Biography* (1928)
Autobiographies:
*My Life and Work: An Autobiography* (1925)
*The Story of My Life* (1931)