As the sibling says, CL can be written in most any style. Which, I think it is fair to say for any general programming language? The book Exercises in Programming Style highlights that. That said, CL feels far friendlier to the various styles than other languages, to me.

Link to book on Amazon: https://www.amazon.com/dp/0367350203

A little known book that many might find interesting is Cristina Lopes's Exercises in Programming Style which takes a single problem and solves it in 40 different ways using Python. [0]

https://www.amazon.com/Exercises-Programming-Style-Cristina-...

There is also the book "Exercises in Programming Style" that uses the term frequency problem to illustrate 33 different programming paradigms (including a shell solution).

https://www.amazon.com/Exercises-Programming-Style-Cristina-...

http://www.amazon.com/Exercises-Programming-Style-Cristina-V...