I really wish they had picked another cover, though. I know that all these characters are just there to give the various books some sort of identity (like O'Reilly does with animals), but I don't really enjoy seeing a dirty homeless drunkard on top of my favorite Clojure book/ebook.

I'll probably figure out some way to alter the book to avoid being reminded of that cross-eyed Victorian chimney cleaner whenever I think of the joy of Clojure.