What's the best way to learn LISP? [closed]

Try reading Practical Common Lisp, by Peter Seibel.

My personal favorite is Abelson & Sussman Structure and Interpretation of Computer Programs. It uses Scheme, which is a nice and clean dialect of Lisp.

If you like a more practical approach maybe you should pick some Lisp framework for web design (I have no idea if such a beast exists) and jump right in.

You might want to start with The Little Schemer as a warm-up. It's not a practical book about writing production Lisp programs, but it's a great book for learning how to think in Lisp.

MIT has made available an entire LISP course in DIVX and MPEG format. I highly recommend it.

http://groups.csail.mit.edu/mac/classes/6.001/abelson-sussman-lectures/

There is now a book out called 'Land of LISP' that teaches LISP programming through writing 80's style text games. I'm reading it now, and it's very well written and doesn't take itself too seriously, which I like.