I’m a great fan of essays in comic format, and especially when they’re about comics themselves. The Worm’s Eye View To Comics is not a very lengthy work (it’s only five pages), but it does get to the point. It contains the ideas that Steve Whitaker and Mooncat used to teach to kids, but grown-ups can also learn a lot from it.
The leaflet is also available as a pdf download.
(via BugPowder)