The thing with Scala is it depends on the pattern you want to use. I am a big advocate of it, and the function pattern being used fully with something like Cats

The thing with Scala is it depends on the pattern you want to use. I am a big advocate of it, and the function pattern being used fully with something like Cats or ZIO. However I would not suggest starting there. I would start by playing about with the syntax and writing standard OOP code, as its probably what you're most familiar with. When you want to dive into the power of FP then I recommend http://eed3si9n.com/herding-cats/ http://eed3si9n.com/herding-cats/. Its basically a companion to the Haskell book 'Learn you a haskell' (http://learnyouahaskell.com/ http://learnyouahaskell.com/) that takes the theory coming up in that book and translates it to Scala. I found it the most direct explanation of the different types and theories (Monads, Functors, Applicative, etc).