Hi,
I know "Learn You a Haskell" and "Real World Haskell". They are very helpful, but there is number of topics not covered by these books.
Yes. Haskell touches on a *lot* of things, and it's not even remotely practical to try to digest all of them, especially as a beginner. You do not want to do this, and you do not *need* to do this.
I want to learn Haskell in finite time, but having infinite number of
Finite time means you're not going to learn everything, sorry. The world is bigger than you are.
I want to focus on Haskell not the whole world ;) I've seen "Faith, Evolution, and Programming Languages" (by Philip Wadler), he is talking about possible universes and logic ("I can't imagine a universe where modus ponens doesn't work..." - something like that), aliens and other cool stuff :D. And it looks like they are "discovering" Haskell rather than "developing" it. Am I right? If so, it really can be infinite. Anyway, thanks for your response, I will stick to http://www.haskell.org/haskellwiki/Learning_Haskell and I'll try to work out my learning roadmap. Emanuel