This is Perl module Class::Monadic. INSTALLATION Class::Monadic installation is straightforward. If your CPAN shell is set up, you should just be able to do $ cpan Class::Monadic Download it, unpack it, then build it as per the usual: $ perl Makefile.PL $ make && make test Then install it: $ make install DOCUMENTATION Class::Monadic documentation is available as in POD. So you can do: $ perldoc Class::Monadic to read the documentation online with your favorite pager. Goro Fuji (gfx)