Getting Started With Emacs Lisp Hands On - A Practical Beginners Tutorial
Here's my own attempt at something similar (a little over 9 years old now, so a little dated, probably...?) https://steinar.bang.priv.no/2012/05/03/emacs-and-lisp/
Just had a quick read, always nice to find new details. I kind of do not have the time and patience to read full manuals, so I am always happy to get usefull information presented to me in a compact form with reading time of 5 min.
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