I have the Marx-Engels reader which has a LOT of Marx and plenty of Engel’s essential texts. I also have the Essential works of Lenin and a few others by him, I have 3 Stalin books(Anarch or Soc, Marxism & Natl. Question, Foundations of Leninism). I’m wondering who is another important Marxist to collect works of? My main thought is probably Rosa Luxembourg but I don’t know which collection to get. Any other good collections of works would be appreciated