I wasn't into the art of R. Crumb back in the day because I was a little too young for it, and my folks were a little too old for it. I really didn't see that much of it. I kind of like it now, even though I find it all mildly disturbing. The above were the results of a recent image search I did, and I have to say that some of the stuff he did was pretty insane, but there's no question he was an excellent artist.