How do I learned LISP?

Yes, I know there is a lisp thread already, but it's filled entirely with faggots spamming LISP LISP LISP. I don't expect to find anything useful there.

I want to learn Common Lisp. What is the best freely available guide for doing this? Thanks, /prog/.

>>1
If you can't buy or somehow else get a copy of ANSI Common LISP, there are some other freely available resource such as Practical Common Lisp by Peter Seibel and PG's other book On Lisp. On Lisp deals more with macros, so I don't think if it's good to be the first book one reads. Others also suggest PAIP as an alternative to ACL, or if you feel like reading a complete description of the language, read Common Lisp the Language 2(freely available too), it's less terse than the Hyperspec(which you should also get so you could look things up).