Hi all, i need to add in the fly a taxonomy to a book. I've put an extra field in my book (a cck node) in case the user want to add a new taxonomy without going to the form taxonomy. I've a custom module to handle this: function source_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) { switch ($op) { case 'submit': if ($node->type == 'content_libro') { echo "Nuevo Autor: " . $node->field_nuevo_autor[0]["value"]; } break; case 'insert': break; case 'update': if ($node->type == 'content_libro') { echo "Nuevo Autor: " . $node->field_nuevo_autor[0]["value"]; } break; case 'view': break; } } (This is from drupal.org) Now i need to create the taxonomy and then to put the book node in this taxonomy. I suppose it can be done with taxonomy_nodeapi o something similar but i'm newby in Drupal. thanks in advance, -- Carlos Rincón www.neuroticweb.com www.neuroticweb.com/blog