When I looked at Lisp I liked the language. As with Perl, the people who like Lisp seem to *love* it.

(Python people too, but I'm not sure about PHP)

There were lots of versions of Lisp, which was a pain, and Emacs Lisp is different from Common Lisp (AND from ELisp). The Practical Common Lisp book is online - along with "Lisp in a box". Nice way to get into it.

Pretty different from Perl, though you start to see where 1 or 2 Perl-ish things came from. Didn't persuade me to do everything in Lisp - the community was *nothing* like eg: Perlmonks, alas.