[mindcrime]

Same. I have a vanilla Emacs install and the Lisp Intro doesn't seem to be there.

You can find it online though:

https://www.emacswiki.org/emacs/EmacsLispIntro

Edit: I'm on an Ubuntu derived distro, so this may be the issue:

https://emacs.stackexchange.com/questions/48211/emacs-manual...

Edit2:

Yeah, at least for me that was the problem. This fixed it:

sudo apt-get -y install emacs-common-non-dfsg