The easy way is thru the late Robert Chassell's book "Emacs Lisp Intro". I know someone mentioned it , but I bought a hard copy of Chassell's book and its great

The easy way is thru the late Robert Chassell's book "Emacs Lisp Intro". I know someone mentioned it , but I bought a hard copy of Chassell's book and its great to learn, esp from one of the core members, in a different style. My brain refuses to dig books written in the same "new" way.