I'm curious as to why they chose the second SUPERGIRL story from this issue to illustrate on the cover as the first one, by Cary Bates with Win Mortimer and Jack Abel, is quite fun and more than a little different for this series. It's a tribute to a classic story by...Well, here. YOU read it.
The late Joe Kubert, founder of the art school that bears his name, had been educating others in cartooning almost as long as he himself had been a cartoonist. Here, in what is basically a filler page, is a very educational and informative intro to the basics of cartooning.