[Why Socialism?]9http://www.exponentialimprovement.com/cms/uploads/Einstein%20on%20Why%20Socialism.pdf) Wage Labor and Capital Value, Price and Profit Socialism: Utopian and Scientific The Three Sources and Three Component Parts of Marxism Dialectical and Historical Materialism The State and Revolution The Proletarian Revolution and the Renegade Kautsky Imperialism and the Split in Socialism My personal favorite [Against Empire](Against Empire) Blackshirts and Reds