Mac Gerdts, I own almost all of his games and it's fascinating how elegant they are.. most of the rules fit in an A4 paper, you can explain them in less than 15 minutes without ambiguities and the gameplay is really interesting, leaving you with a lot of decisions to take..
Never heard of GWT Argentina before, is this an expansion or a standalone game? I love the original GWT although it's quite difficult to explain and it takes a lot of time for the setup..
I'll try to replay Encyclopedia, the first game was fun but I'm scared that there is only one strategy to win (which is to do one single big expedition with one publication at the end).. the first game was won by a friend of mine using this strategy and I can't see how to win in a different way..