If you know Lisp, you can tell it's an introduction along the lines of The Little Schemer/LISPer, and that it's cool. If you don't know Lisp, then you probably

If you know Lisp, you can tell it's an introduction along the lines of The Little Schemer/LISPer, and that it's cool. If you don't know Lisp, then you probably have better things to be doing right now, like learning Lisp :)