https://berksoft.ca/gol/genius-of-lisp-chapter-8.pdf (and of course the stuff that Amazon has in their preview, which amazingly goes all the way through the introductory chapter but yeah, misses something meatier than that).

Yeah, it's one of the things that I wanted to do and then I was undecided which chapter to pick. But your criticism is valid, I'll pick a chapter and cut it out from the PDF and put it up hopefully later tonight (EST). Watch this space and don't hesitate to prod me :)