I have been learning this programming language called Haskell for about a year now, and it is probably the single most fascinating and frustrating topic I have ever learned since I started programming. This is probably the 10th time rewriting the first paragraph because I can't find a way to write something convincing as an elevator pitch, and nobody else seems to be able to explain it well either. The general consensus usually sounds something like it's clean and maintainable. Yes, the syntax and features are quite interesting, but I promise you that's nowhere near the full reason. This isn’t a tutorial on the language, but a representation of the foundations it's built on, the math stuff, and the logic behind it because that's what makes it useful and rather addictive.