I read about the haskell language having tons of really cool features, so I decided to take a bit and look at them. So the end of my day were checking haskell tutorials and testing the language base concepts.
Haskell tutorial I followed

It's really nice, some concepts really unlike the stuff I usually use. In the future I may try to implement something with it to check how the program behaves.
Would like to also try Rust programming, looks fun too. :D