diff --git a/captcha.inc b/captcha.inc
index 818dd90..22e939b 100644
--- a/captcha.inc
+++ b/captcha.inc
@@ -286,6 +286,7 @@ function _captcha_get_captcha_placement($form_id, $form) {
     variable_set('captcha_placement_map_cache', $placement_map);
   }
 
+  drupal_alter('captcha_placement', $placement, $form_id);
   return $placement;
 }
 
diff --git a/captcha_api.txt b/captcha_api.txt
index bf6b79c..f23792e 100644
--- a/captcha_api.txt
+++ b/captcha_api.txt
@@ -176,3 +176,30 @@ function foo_captcha_custom_validation($solution, $response, $element, $form_sta
 These extra arguments are the $element and $form_state arguments of the validation function
 of the #captcha element. See captcha_validate() in captcha.module for more info about this.
 
+The Captcha module attempts to place the captcha element in an appropriate spot at the bottom of the targeted
+form, but this may require customization with complex forms such as multi-part forms. You can customize
+placement using hook_captcha_placement_alter, as shown in the following example:
+"""
+/**
+ * Custom placement of CAPTCHA elements within forms.
+ *
+ * @param placement an array targeting the place within the form to insert the validation element
+ * @param form_id the id of the form in which you want to affect placement.
+ */
+function hook_captcha_placement_alter(&$placement, $form_id) {
+  if ($form_id == 'appform_form') {
+    $placement['path'][1] = 'fieldset3';
+    $placement['key'] = 'submit';
+    $placement['weight'] = NULL;
+  }
+}
+"""
+CAPTCHA elements are real Drupal form elements, which makes it easy to add a CAPTCHA element using
+the Forms API, as discussed at http://drupal.org/node/743056
+Example: 
+"""
+$form['my_captcha_element'] = array(
+  '#type' => 'captcha',
+  '#captcha_type' => 'captcha/Math',
+);
+"""
\ No newline at end of file