This is the whole new universe. It is very special, mind blowing, and completely different experience. I think learning Haskell is a very good idea. The core language is very elegant, and it brings on the table a lot of interesting concepts. If you know Haskell, it is not a problem to pick up any language. Haskell is the king. It is in the front line of computer science." [0]
I recommend going through [1] and once you get to monads switch pace and look for more resources.