Lenin's 1920 pamphlet against ultra-leftism and anarchism.
Abridged text of the speech by Richard Barrett before the United States Senate Judiciary Committee on June 22, 1968, arguing for regulation of subversive and anarchist elements in the US. Provided by Nationalist.org.
Images of historical critical publications, mostly by socialists, provided by the Anarchy Archives.
Libertarian essay attributing atrocities to anarchists during the Spanish Revolution, with historical, economic, and philosophical criticisms of left-anarchism.