Great suggestions by others already, but I just wanted to be sure you were aware of the excellent documentation that comes with Perl - the perldocs. At a command prompt, do

   perldoc perl
[download]

and you'll see a list of all the individual perldocs that come with perl. While you're in 'perldoc perl', page down until you see these listed:

   perlmod
   perlmodlib
   perlmodstyle
   perlmodinstall
   perlnewmod
[download]

Each one is listed with a short description of what information it contains.

HTH.