Keywords: Functional, Book Guide and List

Haskell

Functional Design and Architecture (Alexander Granin)
Software Design in Functional Programming, Design Patterns and Practices, Methodologies and Application Architectures. How to build real software in Haskell with less efforts and low risks. The first complete source of knowledge.
https://leanpub.com/functional-design-and-architecture

C++

Functional Programming in C++: How to improve your C++ programs using functional techniques 1st Edition (Ivan Cukic, November 19, 2018)
https://www.amazon.com/Functional-Programming-programs-functional-techniques/dp/1617293814


“Plans are only good intentions unless they immediately degenerate into hard work.” ― Peter Drucker