Below is a complete podcast of the second of Socialist Fight’s public class series on Trotskyism, which was held on July 13. This covers the period from the victory of the Russian Revolution in October 1917 – the greatest single progressive and revolutionary event in human history – to the victory of Hitler over the German working class, the most cultured and advanced in the world at that time, in January 1933. The rise of Stalinism, and the blundering of the world working class movement under Stalinist and social democratic misleadership to the terrible disaster of fascism, is covered and analysed in some depth in the presentation.