Good afternoon, im working on a custom module (my first one) and i have a question. I´d like to modify the output of the nodes, such as modules like print does. I´ve been reading about the hook funcions but i´m not sure about the better or most advisable way. For example: function monedas_block($op='list', $delta=0) { // listing of blocks, such as on the admin/block page if ($op == "list") { $block[0]["info"] = t('Monedas'); return $block; } else if ($op == 'view') { $block['content'] = "contenido del bloque"; return $block; } } // end monedas_block ¿is this method correct? Is there any good lecture about it? Thanks a lot.