Old joke:
Two professors chatting.
First Professor: I say, Rodney, have you read Derrida’s treatise on grammatology?
Second Professor: Read it? I haven’t even taught it!

My book Clowns has long been out of print, but you can borrow it for two weeks at a time from the Internet Archive. More information is available here.
Visual and verbal humor for the cognitively and artistically curious! Available here.
“A book to treasure!”
—Bill Irwin