I would start with Scheme or Racket that is based on Scheme. I would start with any Scheme interpreter like Kawa or Guile. If I would recommend any book it woul

I would start with Scheme or Racket that is based on Scheme. I would start with any Scheme interpreter like Kawa or Guile. If I would recommend any book it would be Sketchy Scheme by Nils M Holm (that I've read recently) https://www.t3x.org/sketchy/ https://www.t3x.org/sketchy/ it start with basics but it have lot of details and advanced stuff about Scheme and how it works. It also as title suggest intro to functional programming. If you would like to learn on line (maybe using pdf book) you can try my Scheme REPL bookmarklet https://lips.js.org/#bookmark https://lips.js.org/#bookmark so you don't need to install anything on your computer, you can do that later.