Learn Haskell, a pure functional programming language, with these online resources. Find books, tutorials, and platforms for beginners and experts.

Get Programming with Haskell introduces you to the Haskell language without drowning you in academic jargon and heavy functional programming theory. By working through 42 easy-to-follow lessons, ...

Just in case you don't think Haskell is being used for anything but academics then check out the Commercial Users of Functional Programming site. They have an annual conference as well.