What to read about functional programming?

Question

C++ / C#

Hello)
I came across an article on Habré where they describe several concepts and an approach in general in FP. I was very interested. Advise what / where can I read about the concept of FP? I will not code in Haskell or the like. therefore, not specifically, but, as it were, in general, the idea itself is of interest. In general, in order to code like in Haskell, but not in Haskell.)
Something like that, I hope it’s clear.)

Answer 1

If you are interested in pluses, then below are three links:
First (Here it is boost)
Second
Third
There is also a lot of literature that is not tied to specific languages, a list of which can be found at the first link in Google.
However, good FP requires an understanding of the "insides" of FP, and that's okay, Haskell can't handle it better.
And the pluses for "Like on Haskell" are not very good.