Slightly off the topic: if I have to start using Lisp now, how do I start?
I tried curating things on my own but felt overwhelmed with the alternatives and resources.
Will appreciate your take on this.
Will appreciate your take on this.
Curated library list https://awesome-cl.com
Cookbook https://lispcookbook.github.io/cl-cookbook/
IDE+Runtime https://portacle.github.io
Printable cheatsheet http://clqr.boundp.org
However, I’m a fan of How To Design Programs as a gentle introduction, followed by the Racket Guide (EDIT: if you're open to other lisps). Racket is a Scheme-descended lisp, and I feel has better pedagogy, community, and a more modern feel than Common Lisp.
I also like Clojure. There have been several decent books, some free, in addition to Clojure Koans and the 4clojure exercises.
EDIT: While I like Emacs, if you don’t already grok Emacs, DrRacket is a very compelling reason to start your lisp journey with Racket.
But to answer your question directly, when I was re-learning CL circa 2005 long after university, I populated these pages as I went along:
https://play.org/links/lisp-intro
(I've meant to fold content from those into Lisp-Lang.org but never found/made the time. I did, however, prune obsolete bits earlier this year.)
Best of luck to you!
If you or anyone seeking to learn is in Vancouver, Canada, feel free to reach out and meet for coffee/tea/beer/cider.