diff --git a/modules/image/image.module b/modules/image/image.module
index ff50452..94536e4 100644
--- a/modules/image/image.module
+++ b/modules/image/image.module
@@ -656,8 +656,19 @@ function image_style_load($name = NULL, $isid = NULL, $include = NULL) {
 /**
  * Save an image style.
  *
- * @param style
- *   An image style array.
+ * @param array $style
+ *   An image style array containing:
+ *   - name: A unique name for the style.
+ *   - isid: (optional) An image style ID.
+ *
+ * @return array
+ *   An image style array containing:
+ *   - name: An unique name for the style.
+ *   - old_name: The original name for the style.
+ *   - isid: An image style ID.
+ *   - is_new: Is set to TRUE if this is a new style, and FALSE if it is an
+ *     existing style.
+ *
  * @return
  *   An image style array. In the case of a new style, 'isid' will be populated.
  */
@@ -713,12 +724,14 @@ function image_style_delete($style, $replacement_style_name = '') {
 /**
  * Load all the effects for an image style.
  *
- * @param $style
- *   An image style array.
+ * @param array $style
+ *   An image style array containing:
+ *   - isid: The unique image style ID that contains this image effect.
  * @return
  *   An array of image effects associated with specified image style in the
- *   format array('isid' => array()), or an empty array if the specified style
+ *   format array('ieid' => array()), or an empty array if the specified style
  *   has no effects.
+ * @see image_effects()
  */
 function image_style_effects($style) {
   $effects = image_effects();
diff --git a/modules/node/node.module b/modules/node/node.module
index 04911de..041025f 100644
--- a/modules/node/node.module
+++ b/modules/node/node.module
@@ -497,11 +497,34 @@ function node_type_load($name) {
 /**
  * Saves a node type to the database.
  *
- * @param $info
- *   The node type to save, as an object.
- *
- * @return
- *   Status flag indicating outcome of the operation.
+ * @param object $info
+ *   The node type to save; an object with the following properties:
+ *   - type: A string giving the machine name of the node type.
+ *   - name: A string giving the human-readable name of the node type.
+ *   - base: A string that indicates the base string for hook functions. For
+ *     example, 'node_content' is the value used by the UI when creating a new
+ *     node type.
+ *   - description: A string that describes the node type.
+ *   - help: A string giving the help information shown to the user when
+ *     creating a node of this type.
+ *   - custom: TRUE or FALSE indicating whether this type is defined by a module
+ *     (FALSE) or by a user (TRUE) via Add Content Type.
+ *   - modified: TRUE or FALSE indicating whether this type has been modified by
+ *     an administrator. Currently not used in any way.
+ *   - locked: TRUE or FALSE indicating whether the administrator can change the
+ *     machine name of this type.
+ *   - disabled: TRUE or FALSE indicating whether this type has been disabled.
+ *   - has_title: TRUE or FALSE indicating whether this type uses the node title
+ *     field.
+ *   - title_label: A string containing the label for the title.
+ *   - module: A string giving the module defining this type of node.
+ *   - orig_type: A string giving the original machine-readable name of this
+ *     node type. This may be different from the current type name if the locked
+ *     field is 0.
+ *
+ * @return int
+ *   A status flag indicating the outcome of the operation, either SAVED_NEW or
+ *   SAVED_UPDATED.
  */
 function node_type_save($info) {
   $existing_type = !empty($info->old_type) ? $info->old_type : $info->type;