@fribbledom This, "It is not only the violin that shapes the violinist, we are all shaped by the tools we train ourselves to use, and in this respect programming languages have a devious influence: they shape our thinking habits.", applied to any 3GL language, including Haskell, explains a lot of the mess that is the software world.

I have a colleague who advises people learning software to initially avoid books targeting a specific programming language/environment.