- "My Life and Exploits in Dixie" (1894)
- "Mexico: The Wonderland of the South" (1909)
- "The South America I Know" (1916)
- "Secrets of the Hohenzollerns" (1917)
- "The Allies' Debt to Latin America" (1918)
- "The Secret Service in the World War" (1918)
- "Russia in Revolution" (1919)
- "The Great Plutocracy" (1919)
- "The Riddle of the Rhine" (1919)
- "The War Plotters of Wall Street" (1920)
- "The Rebirth of Europe" (1920)
- "The Kaiser and His Court" (1920)
- "The Fight for Freedom" (1921)
- "The True Victor of the War" (1921)
- "World Dominion: The Dream of the Kaiser" (1921)
- "The Red Republic of Russia" (1921)
- "The League of Nations: A Chapter in World Politics" (1922)
- "The Truth About China" (1923)
- "Mexico: Today and Tomorrow" (1923)
- "The New Germany" (1924)
- "The Rebirth of Turkey" (1924)
- "The World Court: Its History and Achievements" (1924)
- "The United States and the League of Nations" (1924)
- "American Foreign Policy: Past and Present" (1925)
- "Modern Russia: A Social and Economic Survey" (1925)
- "The Modern World: Its Problems and Prospects" (1926)
- "Great Britain and the United States: A Survey of Their Relations" (1927)
- "The Americas and Their Problems" (1928)
- "Asia in Ferment" (1928)
- "The Coming Struggle for South America" (1929)
- "The World Today: A Survey of Its Political and Economic Problems" (1930)
- "The Soviet Union: A Study of Its Political, Economic, and Social Structure" (1931)
- "Europe: A Journey Through Its Problems" (1932)
- "The Far East: A Study of Its Political and Economic Problems" (1933)
- "Problems of the American Citizen" (1933)
- "The United States: Its Problems and Prospects" (1934)
Articles:
- "The Monroe Doctrine and Pan-Americanism" (1914)
- "The United States and the World Court" (1922)
- "The League of Nations and the United States" (1923)
- "American Foreign Policy: A Survey of Its History and Trends" (1924)
- "The United States and the World Court" (1925)
- "The Permanent Court of International Justice" (1926)
- "The United States and the League of Nations" (1927)
- "The Problem of the Far East" (1928)
- "The Monroe Doctrine and the United States" (1929)
- "The Soviet Union: A Study of Its Political, Economic, and Social Structure" (1930)
- "The United States: Its Problems and Prospects" (1931)
- "The World Court: A Survey of Its History and Achievements" (1932)
- "The United States and the League of Nations" (1933)
- "The Far East: A Study of Its Political and Economic Problems" (1934)