John Kricfalusi is the creator of (among a zillion other things) Ren & Stimpy, and that would be more than enough to make him a cool guy. IN addition to all that, however, he has a kickass blog where he frequently spotlights how animation art is made. His scans of old art instruction manuals are truly fabulous, and should all be downloaded and studied. (There are bunches more; just look for 'em.) In yesterday's entry, John has an article by Hanna-Barbera background artist Art Lozzi, explaining how he created backgrounds for such cartoons as Yogi Bear and Huckleberry Hound. Animation background art is one of the frequently-overlooked joys of cartoons, and having a peek behind the curtain at how these were made is a treat. This article was written by Lozzi in response to an earlier post from Kricfalusi which is also well worth reading.
Basically, everything John Kricfalusi puts on his blog is worth reading. Do it now.