Essential language paradigms for professional developer

So I guess most (all?) programmers start out learning a mainly imperative/ procedural programming paradigm, and probably le开发者_运维知识库arnt some form of object-oriented programming fairly shortly after that. I've read plenty of questions on stackoverflow suggesting functional programming is increasingly important for improved concurrency/ parallelism. Also that programmers should learn many paradigms to improve their skills and broaden their perspectives.

What are some other paradigms (and languages that use it) that are really beneficial to development skills?

There's possibly an argument for looking at a logic language such as Prolog. Other than that, within the universe of functional programming languages there are many varieties (e.g. contrast Haskell, ML, Scala and Scheme). You might want to explore the various dimensions in terms of things like type systems, laziness and syntax.