Louise Michel, William Morris, Mikhail Bakunin, Petr Alekseevich Kropotkin, Voltairine de Cleyre, Alexander Berkman, Maurice Brinton, and Andrew Zonneveld
Pete Ayrton (editor), Luis Bunuel (contributor), Langston Hughes (contributor), Jean-Paul Sartre (contributor), George Orwell (contributor), Arturo Barea (contributor), and John Dos Passos (contributor)
Ronald B. Sakolsky (editor), Robin D. G. Kelley (introduction), Franklin Rosemont (contributor), Penelope Rosemont (contributor), Guy Ducornet (contributor), Paul Garon (contributor), and David Roediger (contributor)