Crash Course in Erlang (PDF file) by Roy Deal Simon.
“If your language is not functional, it’s dysfunctional baby.”
I suppose I look at Erlang (and other) intros just to see if the graphics/illustrations are different from other presentations. 😉 Not enough detail to really teach you much but sometimes the graphics are worth remembering.
Not any time soon but it would be interesting to review presentations for common illustrations. Perhaps even a way to find the ones that are the best to use with particular audiences. Something to think about.