Headings
Logical structure is important. So we use headings. There are four levels, and this should be enough. We use the =head1 .. =head4 commands (They are called command paragraphs officially. They are paragraphs because they're separated from the rest of the POD by blank lines).
=head1 NAME
My::Module - An example module
In WebGUI we use =head1 to denote a section of documentation, and =head2 to denote subroutines or methods, and =head3 to denote subroutine parameters.