### Other ###
* [Lambda Lessons](http://stevekrouse.github.io/hs.js), experiment with evaluating `map` and `fold` step-by-step
* [A Tour of the Haskell Prelude](http://www.letu.edu/people/jaytevis/Programming-Languages/Haskell/tourofprelude.html)
-* [Ninety-Nine Haskell Problems](https://wiki.haskell.org/H-99:_Ninety-Nine_Haskell_Problems), a collection of programming exercises
-* [Project Euler](https://projecteuler.net/), more programming challenges
### Advanced Docs, listed here for reference ###
* Formal language specs:
[Haskell 98](https://www.haskell.org/onlinereport) |
[Haskell 2010](https://www.haskell.org/onlinereport/haskell2010) |
-[Haskell'](https://ghc.haskell.org/trac/haskell-prime)
+[Haskell′](https://ghc.haskell.org/trac/haskell-prime)
* [Cabal](https://wiki.haskell.org/Cabal) package manager:
[User Guide](https://www.haskell.org/cabal/users-guide) |
[tool usage](https://wiki.haskell.org/Cabal-Install) |