Higher Order Perl: http://hop.perl.plover.com/ http://hop.perl.plover.com/ On Lisp: http://www.paulgraham.com/onlisp.html http://www.paulgraham.com/onlisp.html

Higher Order Perl: http://hop.perl.plover.com/ http://hop.perl.plover.com/ On Lisp: http://www.paulgraham.com/onlisp.html http://www.paulgraham.com/onlisp.html Also http://it-ebooks.info/ http://it-ebooks.info/ has a wide selection of free ebooks with ads.