While best known for his Little Blue Books, E. Haldeman-Julius also published a compelling range of longer works and essays that expand on his commitment to rationalism, free thought, socialism, and accessible education. These full-length titles reflect his role as a provocative thinker and publisher in early 20th-century America, tackling topics like religion, ethics, science, literature, and politics with clarity and conviction. Whether authoring original critiques or curating radical voices from history, Haldeman-Julius’s larger works provide valuable insight into the intellectual and cultural movements that shaped modern secular and progressive thought.