The SoH Version of Haskell Fast & Hard tutorial. From very beginner up to Monads in a very short and dense tutorial.
This tutorial comes from yannesposito.com.
If you prefer a static version you could always check it here, but the ability to interact with the code provides a great way to learn Haskell without installing anything on your computer.
Furthermore, the School of Haskell version contains some exercises not present in the original version.