| 1910 | Where You Get Off✓Free | John M. Work | English |
| 1912 | The New Socialism✓ — With a Chapter on "You and Your Vote" | Robert Rives La Monte | English |
| 1914 | Legislative Program of the Socialist Party✓Free — Record of the Work of the Socialist Representatives in the State Legislatures of the United States, 1899-1913, with Account of Efforts of the Party in Direct Legislation, by Ethelwyn Mills | Ethelwyn Mills | English |
| 1914 | Public Ownership of Railways✓ | Carl Dean Thompson | English |
| 1914 | The "Gunmen" of Industry✓Free | Robert Hunter | English |
| 1914 | The Bombshell That Henry Ford Fired✓Free | Allan L. Benson | English |
| 1916 | The Socialist Candidate for President Says✓ — How About the High Cost of Living, Mr. Hughes and Mr. Wilson? | Allan Louis Benson | English |
| 1917 | National Constitution and Platform of the Socialist Party, 1917✓ | Socialist party (United States) | English |
| 1918 | Congressional Platform of the Socialist Party, 1918✓Free | Socialist Party (U.S.) | English |
| 1919 | The Soviets✓Free — The Present Government of Russia | Albert Rhys Williams | English |
| 1920 | Build for Socialism!✓ — A Manual on Organization | Harold Kelso & Socialist Party (U.S.) | English |
| 1920 | Why I Joined the Socialist Party✓ | Harriot Stanton Blatch | English |
| 1926 | American Appeal✓ | — | English |
| 1926 | National Constitution of the Socialist Party as Amended in Convention at Pittsburgh, May L, 1926✓Free | Socialist Party (U.S.) | English |
| 1927 | Walls and Bars✓Free | Eugene Victor Debs | English |
| 1928 | Convention of the Socialist Party✓Free — Friday, April 13th - Tuesday, April 17th, 1928 | — | English |
| 1930 | The Socialist Primer✓ — By Art Young | Art Young | English |
| 1930 | Why Aren't We All Rich?✓ Profits and Poverty -- 1 | — | English |
| 1930 | Why I am a socialist✓Free | Norman Thomas | Not recorded |
| 1931 | If New York Were Socialist!✓ | Paul Blanshard | English |
| 1932 | How to End War✓ | Socialist Party (U.S.) | English |
| 1932 | What Socialism Is and Is Not✓ Pamphlets in American History -- S 421 | Norman Mattoon Thomas | English |
| 1932 | Why I Am a Socoalist✓ | Norman C. Thomas | English |
| 1933 | Taxes and Tax Dodgers✓ Issues of the Day -- 2 | Daniel W. Hoan | English |
| 1933 | The National Industrial Recovery Act✓ Issues of the Day; 1 | John Francis Sullivan, Andrew J. Biemiller & Maynard C. Krueger | English |
| 1934 | Do You Want Another War?✓Free — Proclamation and War Program | — | English |
| 1934 | Farmers Where Are We Going✓ Issues of the Day -- No.5 | George A. Nelson | English |
| 1934 | Inflation✓ — Who Wins and Who Loses? Issues of the Day -- 4 | Maynard C. Krueger | English |
| 1934 | The Commonwealth Plan✓ | Socialist Party (U.S.) | English |
| 1934 | The Unions and the Socialists✓ | Leo Krzycki | English |
| 1936 | For a Socialist America✓Free — 1936 National Platform, Socialist Party | Socialist Party (U.S.) | English |
| 1936 | Socialist Party, United States of America 1901-1936✓ — Thirty-Fifth Anniversary Journal: Issued on the Occasion of the Nineteenth Convention | Socialist Party (United States) | English |
| 1937 | The First Two Moscow Trials✓ — Why? | Francis Heisler | English |
| 1939 | "Socialism States Its Case on War"✓ | Norman Thomas | English |
| 1939 | Communism✓ — World Revolution to Red Imperialism | Lillian Symes | English |
| 1942 | India's Revolution✓ — Its Challenge and Meaning | Lillian Symes | English |
| 1944 | Freedom for All!✓ — 1944 Socialist Platform | Socialist Party (United States) | English |
| 1945 | Democracy Is Not Doomed!✓ — An Answer to Friedrich Hayek "Freedom for All" Pamphlets -- No. 5 | Judah Drob | English |
| 1945 | Russia, Promise and Performance✓ Sixth of a New Pamphlet Series "Freedom for All" | Norman Thomas | English |
| 1946 | Q A✓ — Your Questions Answered | Socialist Party (U.S.) | English |
| 1946 | The Atomic Age✓ — Suicide, Slavery or Socialism? | Aaron Levenstein | English |
| 1962 | To Build a Better World✓ — The 1962 Socialist Platform | Socialist Party (U.S.) | English |
| 1970 | Walls and Bars✓Free Library of American Civilization -- LAC 16401 | Eugene Victor Debs | English |
| n.d. | Italy — Victory Through Revolution Freedom for All Pamphlet -- #2 | Roy Curtis | English |
| n.d. | The Negro and Socialism | Frank Rudolph Crosswaith & Socialist Party (U.S.) | English |
| n.d. | The Socialists and the Sword | George R. Kirkpatrick | English |
| n.d. | What Is Socialism? | — | English |