Learning CLOS from "The Art of MOP" is a stupid idea. Sonya Keene's book is far more suitable, and also rather unnecessary. Onlisp is a useful resource: http:/

Learning CLOS from "The Art of MOP" is a stupid idea. Sonya Keene's book is far more suitable, and also rather unnecessary. Onlisp is a useful resource: http://www.paulgraham.com/onlisp.html http://www.paulgraham.com/onlisp.html. ANSI CL is nice too. For something simpler checkout David Touretsky's book, or Stuart Shapiro's book. PCL is awesome too. The latter is far more in touch with current CL "style". PAIP is also very cool. No one is asking you to use Lispworks! If you can't afford to pay for it, use SBCL or CCL with Emacs/SLIME.