Saya mau tau online free to borrow dari Leon Trotski

(1959) Trotsky: The Prophet Unarmed

(1963) Trotsky: The Prophet Outcast

Isaac Deutscher (1966) Ironies of History.

Daniels, Robert V (1991) Trotsky, Stalin & Socialism. Westview Press.

Dunn, Bill & Radice, Hugo eds. Permanent Revolution – Results and Prospects 100 Years On London: Pluto Press

Gilbert, Helen (2003) Leon Trotsky: His Life and Ideas. Red Letter Press

Hallas, Duncan (1979) Trotsky's Marxism London: Pluto Press

Hansen, Joseph, ed. (1969) Leon Trotsky: the Man and His Work. Reminiscences and Appraisals. New York: Merit Publishers.

Levine, Isaac Don (1960) The Mind of an Assassin. New York: New American Library/Signet Book.

Molyneux, John (1981) Leon Trotsky's Theory of Revolution, Brighton: Harvester Press

Patenaude, Bertrand M. (2009) Trotsky: Downfall of a Revolutionary (New York: HarperCollins)  370pp; scholarly study of 1937–40 period    online free to borrow

Paul Le Blanc, 2015 Leon Trotsky  London: Reaktion Books,

Pipes, Richard, ed. (1996) The Unknown Lenin. Yale University Press.