I am serious. The answer on None really, Stalin's only major work is on the national question, its an informative read. To be an anti-revisionist you don't have to love Stalin, just be against the distortions of Marxism-Leninism. I'm late, but...I wouldn't agree that his "only major" work is Marxism and the National Question. The Foundations of Leninism is 1000x better in my opinion, and is basically Stalin's best work. It is short, blunt, easy-to-read and straight to the point. It is also a good read for beginners. Check it out: http://www.marx2mao.com/Stalin/FL24.html
Leo Huberman - Man's Worldly Goods Most of the book is an economic history of the transition from Fuedalism to Capitalism but it also has some very good chapters of the construction of Socialism in 1930s in USSR Walter Rodney - How Europe underdeveloped Africa How capitalism grew rich from slavery, colonialism etc Also dispels myths of Africa being a continent of primitive civilisations Harpal Brar - Trotskyism or Leninism dispells the myth that Lenin and Trotsky were the batman and robin of the revolution John Ross Campbell - Soviet Policy and its critics Does the same as Harpals books and defends soviet policy in the 1930s Harry Hayward - Black Bolshevik autpbiography of an anti-revisionist african american communist