These study guides were prepared for weekly classes organized in the 1980s by branches of the Socialist Workers Party. The first reviews Bolshevik leader V.I. Lenin's political strategy for the Russian Revolution--the course that guided the Bolshevik Party as it led workers and peasants to take power in October 1917. The second takes up the Bolsheviks' struggle during the years prior to the revolution to help build a revolutionary working-class movement worldwide. The third examines how the Bolsheviks used the power of the victorious workers state and the impulse the revolution gave to working-class struggles everywhere to build a new, Communist International. The final item, by Bolshevik and Communist International leader Gregory Zinoviev, reviews the Marxist approach to wars from the battle to unify Italy in 1859 to the eve of the first imperialist world war in 1914.