Leon Trotsky was an organizer of the Russian Revolution and a major opponent of its bureaucratic degeneration into the anti-democratic regime identified with Joseph Stalin. Trotsky's revolutionary Marxist analyses help us understand the democratic meaning of socialism and also how the Stalin dictatorship was able to take power. These are vital tools for activists of today and tomorrow.
"The Russian Revolution - Timeline with John Rees": https://www.youtube.com/watch?v=7VXGYlSblxU
Leon Trotsky, "In Defense of October" (1932) https://www.marxists.org/archive/trotsky/1932/11/oct.htm
Leon Trotsky, "Stalinism and Bolshevism" (1937)