1 - GraphViz use GraphViz; my $g = GraphViz->new(); $g->add_node('London'); $g->add_node('Paris', label => 'City of\nlurve'); $g->add_node('New York'); $g->add_edge('London' => 'Paris'); $g->add_edge('London' => 'New York', label => 'Far'); $g->add_edge('Paris' => 'London'); print $g->as_png;