Ely, R.T.: French and German Socialism, 1883.
Ensor, R.C.K.: Modern Socialism. A useful collection of Socialist documents, speeches, programs, etc.
Graham, W.: Socialism New and Old, 1890.
Guthrie, W.B.: Socialism Before the French Revolution, 1907.
Guyot, Y.: The Tyranny of Socialism, 1894.
Jaurès, J.: Studies in Socialism, 1906.
Kautsky, K.: The Social Revolution. An English translation by J.B. Askew. The best Continental view of modern Marxianism, and the most widely read.
Kelly, Edmond: Twentieth Century Socialism, 1910. The most noteworthy of recent American contributions to Socialist thought.
Kirkup: A History of Socialism, 1909. A concise and authoritative narrative.
Koigen, D.: Die Kultur-ausschauung des Sozialismus, 1903.