diff --git a/modules/image/image.module b/modules/image/image.module
index 3262317..6dbf450 100644
--- a/modules/image/image.module
+++ b/modules/image/image.module
@@ -531,7 +531,7 @@ function image_field_update_instance($instance, $prior_instance) {
 }
 
 /**
- * Clear cached versions of a specific file in all styles.
+ * Clears cached versions of a specific file in all styles.
  *
  * @param $path
  *   The Drupal file path to the original image.
@@ -547,7 +547,7 @@ function image_path_flush($path) {
 }
 
 /**
- * Get an array of all styles and their settings.
+ * Gets an array of all styles and their settings.
  *
  * @return
  *   An array of styles keyed by the image style ID (isid).
@@ -608,7 +608,7 @@ function image_styles() {
 }
 
 /**
- * Load a style by style name or ID. May be used as a loader for menu items.
+ * Loads a style by style name or ID. May be used as a loader for menu items.
  *
  * @param $name
  *   The name of the style.
@@ -654,7 +654,7 @@ function image_style_load($name = NULL, $isid = NULL, $include = NULL) {
 }
 
 /**
- * Save an image style.
+ * Saves an image style.
  *
  * @param array $style
  *   An image style array containing:
@@ -666,8 +666,8 @@ function image_style_load($name = NULL, $isid = NULL, $include = NULL) {
  *   - name: An unique name for the style.
  *   - old_name: The original name for the style.
  *   - isid: An image style ID.
- *   - is_new: Is set to TRUE if this is a new style, and FALSE if it is an
- *     existing style.
+ *   - is_new: TRUE if this is a new style, and FALSE if it is an existing
+ *     style.
  */
 function image_style_save($style) {
   if (isset($style['isid']) && is_numeric($style['isid'])) {
@@ -694,7 +694,7 @@ function image_style_save($style) {
 }
 
 /**
- * Delete an image style.
+ * Deletes an image style.
  *
  * @param $style
  *   An image style array.
@@ -719,11 +719,12 @@ function image_style_delete($style, $replacement_style_name = '') {
 }
 
 /**
- * Load all the effects for an image style.
+ * Loads all the effects for an image style.
  *
  * @param array $style
  *   An image style array containing:
  *   - isid: The unique image style ID that contains this image effect.
+ *
  * @return array
  *   An array of image effects associated with specified image style in the
  *   format array('isid' => array()), or an empty array if the specified style
@@ -743,7 +744,7 @@ function image_style_effects($style) {
 }
 
 /**
- * Get an array of image styles suitable for using as select list options.
+ * Gets an array of image styles suitable for using as select list options.
  *
  * @param $include_empty
  *   If TRUE a <none> option will be inserted in the options array.
@@ -767,7 +768,7 @@ function image_style_options($include_empty = TRUE) {
 }
 
 /**
- * Menu callback; Given a style and image path, generate a derivative.
+ * Menu callback: Given a style and image path, generate a derivative.
  *
  * After generating an image, transfer it to the requesting agent.
  *
@@ -924,7 +925,7 @@ function image_style_transform_dimensions($style_name, array &$dimensions) {
 }
 
 /**
- * Flush cached media for a style.
+ * Flushes cached media for a style.
  *
  * @param $style
  *   An image style array.
@@ -956,7 +957,7 @@ function image_style_flush($style) {
 }
 
 /**
- * Return the URL for an image derivative given a style and image path.
+ * Returns the URL for an image derivative given a style and image path.
  *
  * @param $style_name
  *   The name of the style to be used with this image.
@@ -983,7 +984,7 @@ function image_style_url($style_name, $path) {
 }
 
 /**
- * Return the URI of an image when using a style.
+ * Returns the URI of an image when using a style.
  *
  * The path returned by this function may not exist. The default generation
  * method only creates images when they are requested by a user's browser.
@@ -1009,7 +1010,7 @@ function image_style_path($style_name, $uri) {
 }
 
 /**
- * Save a default image style to the database.
+ * Saves a default image style to the database.
  *
  * @param style
  *   An image style array provided by a module.
@@ -1030,7 +1031,7 @@ function image_default_style_save($style) {
 }
 
 /**
- * Revert the changes made by users to a default image style.
+ * Reverts the changes made by users to a default image style.
  *
  * @param style
  *   An image style array.
@@ -1047,7 +1048,10 @@ function image_default_style_revert($style) {
 }
 
 /**
- * Pull in image effects exposed by modules implementing hook_image_effect_info().
+ * Returns a set of image effects.
+ *
+ * These image effects are exposed by modules implementing
+ * hook_image_effect_info().
  *
  * @return
  *   An array of image effects to be used when transforming images.
@@ -1089,7 +1093,7 @@ function image_effect_definitions() {
 }
 
 /**
- * Load the definition for an image effect.
+ * Loads the definition for an image effect.
  *
  * The effect definition is a set of core properties for an image effect, not
  * containing any user-settings. The definition defines various functions to
@@ -1128,7 +1132,7 @@ function image_effect_definition_load($effect, $style_name = NULL) {
 }
 
 /**
- * Load all image effects from the database.
+ * Loads all image effects from the database.
  *
  * @return
  *   An array of all image effects.
@@ -1160,7 +1164,7 @@ function image_effects() {
 }
 
 /**
- * Load a single image effect.
+ * Loads a single image effect.
  *
  * @param $ieid
  *   The image effect ID.
@@ -1190,7 +1194,7 @@ function image_effect_load($ieid, $style_name, $include = NULL) {
 }
 
 /**
- * Save an image effect.
+ * Saves an image effect.
  *
  * @param $effect
  *   An image effect array.
@@ -1210,7 +1214,7 @@ function image_effect_save($effect) {
 }
 
 /**
- * Delete an image effect.
+ * Deletes an image effect.
  *
  * @param $effect
  *   An image effect array.
@@ -1222,7 +1226,7 @@ function image_effect_delete($effect) {
 }
 
 /**
- * Given an image object and effect, perform the effect on the file.
+ * Applies an image effect to the image object.
  *
  * @param $image
  *   An image object returned by image_load().
@@ -1278,7 +1282,7 @@ function theme_image_style($variables) {
 }
 
 /**
- * Accept a keyword (center, top, left, etc) and return it as a pixel offset.
+ * Accepts a keyword (center, top, left, etc) and returns it as a pixel offset.
  *
  * @param $value
  * @param $current_pixels
diff --git a/modules/node/node.module b/modules/node/node.module
index c1e98af..9aa58e6 100644
--- a/modules/node/node.module
+++ b/modules/node/node.module
@@ -302,7 +302,7 @@ function node_title_list($result, $title = NULL) {
 }
 
 /**
- * Update the 'last viewed' timestamp of the specified node for current user.
+ * Updates the 'last viewed' timestamp of the specified node for current user.
  *
  * @param $node
  *   A node object.
@@ -342,7 +342,7 @@ function node_last_viewed($nid) {
 }
 
 /**
- * Decide on the type of marker to be displayed for a given node.
+ * Determins the type of marker to be displayed for a given node.
  *
  * @param $nid
  *   Node ID whose history supplies the "last viewed" timestamp.
@@ -371,7 +371,7 @@ function node_mark($nid, $timestamp) {
 }
 
 /**
- * Extract the type name.
+ * Extracts the type name.
  *
  * @param $node
  *   Either a string or object, containing the node type information.
@@ -577,7 +577,7 @@ function node_type_save($info) {
 }
 
 /**
- * Add default body field to a node type.
+ * Adds default body field to a node type.
  *
  * @param $type
  *   A node type object.
@@ -883,7 +883,7 @@ function node_rdf_mapping() {
 }
 
 /**
- * Determine whether a node hook exists.
+ * Determines whether a node hook exists.
  *
  * @param $node
  *   A node object or a string containing the node type.
@@ -899,7 +899,7 @@ function node_hook($node, $hook) {
 }
 
 /**
- * Invoke a node hook.
+ * Invokes a node hook.
  *
  * @param $node
  *   A node object or a string containing the node type.
@@ -920,7 +920,7 @@ function node_invoke($node, $hook, $a2 = NULL, $a3 = NULL, $a4 = NULL) {
 }
 
 /**
- * Load node entities from the database.
+ * Loads node entities from the database.
  *
  * This function should be used whenever you need to load more than one node
  * from the database. Nodes are loaded into memory and will not require database
@@ -950,7 +950,7 @@ function node_load_multiple($nids = array(), $conditions = array(), $reset = FAL
 }
 
 /**
- * Load a node object from the database.
+ * Loads a node object from the database.
  *
  * @param $nid
  *   The node ID.
@@ -1006,7 +1006,7 @@ function node_object_prepare($node) {
 }
 
 /**
- * Perform validation checks on the given node.
+ * Performs validation checks on the given node.
  */
 function node_validate($node, $form, &$form_state) {
   $type = node_type_get_type($node);
@@ -1043,7 +1043,7 @@ function node_validate($node, $form, &$form_state) {
 }
 
 /**
- * Prepare node for saving by populating author and creation date.
+ * Prepares node for saving by populating author and creation date.
  */
 function node_submit($node) {
   // A user might assign the node author by entering a user name in the node
@@ -1064,7 +1064,7 @@ function node_submit($node) {
 }
 
 /**
- * Save changes to a node or add a new node.
+ * Saves changes to a node or adds a new node.
  *
  * @param $node
  *   The $node object to be saved. If $node->nid is
@@ -1224,7 +1224,7 @@ function _node_save_revision($node, $uid, $update = NULL) {
 }
 
 /**
- * Delete a node.
+ * Deletes a node.
  *
  * @param $nid
  *   A node ID.
@@ -1234,7 +1234,7 @@ function node_delete($nid) {
 }
 
 /**
- * Delete multiple nodes.
+ * Deletes multiple nodes.
  *
  * @param $nids
  *   An array of node IDs.
@@ -1287,7 +1287,7 @@ function node_delete_multiple($nids) {
 }
 
 /**
- * Delete a node revision.
+ * Deletes a node revision.
  *
  * @param $revision_id
  *   The revision ID to delete.
@@ -1312,7 +1312,7 @@ function node_revision_delete($revision_id) {
 }
 
 /**
- * Generate an array for rendering the given node.
+ * Generates an array for rendering the given node.
  *
  * @param $node
  *   A node object.
@@ -1450,7 +1450,7 @@ function node_build_content($node, $view_mode = 'full', $langcode = NULL) {
 }
 
 /**
- * Generate an array which displays a node detail page.
+ * Generates an array which displays a node detail page.
  *
  * @param $node
  *   A node object.
@@ -1489,7 +1489,7 @@ function node_is_page($node) {
 }
 
 /**
- * Process variables for node.tpl.php
+ * Processes variables for node.tpl.php
  *
  * Most themes utilize their own copy of node.tpl.php. The default is located
  * inside "modules/node/node.tpl.php". Look in there for the full list of
@@ -1611,7 +1611,7 @@ function node_permission() {
 }
 
 /**
- * Gather the rankings from the the hook_ranking implementations.
+ * Gathers the rankings from the the hook_ranking() implementations.
  *
  * @param $query
  *   A query object that has been extended with the Search DB Extender.
@@ -2172,7 +2172,7 @@ function node_menu_local_tasks_alter(&$data, $router_item, $root_path) {
 }
 
 /**
- * Title callback for a node type.
+ * Title callback: Returns the unsanitized title of the node type edit form.
  *
  * @param $type
  *   The node type object.
@@ -2187,7 +2187,7 @@ function node_type_page_title($type) {
 }
 
 /**
- * Title callback.
+ * Title callback: Returns the title of the node.
  *
  * @param $node
  *   The node object.
@@ -2215,7 +2215,7 @@ function node_last_changed($nid) {
 }
 
 /**
- * Return a list of all the existing revision numbers.
+ * Returns a list of all the existing revision numbers.
  *
  * @param Drupal\node\Node $node
  *   The node entity.
@@ -2446,7 +2446,7 @@ function node_form_block_admin_configure_alter(&$form, &$form_state) {
 }
 
 /**
- * Form submit handler for block configuration form.
+ * Form submission handler for node_form_block_admin_configure_alter().
  *
  * @see node_form_block_admin_configure_alter()
  */
@@ -2478,7 +2478,7 @@ function node_form_block_custom_block_delete_alter(&$form, &$form_state) {
 }
 
 /**
- * Form submit handler for custom block delete form.
+ * Form submission handler for node_form_block_custom_block_delete_alter().
  *
  * @see node_form_block_custom_block_delete_alter()
  */
@@ -2644,7 +2644,7 @@ function node_feed($nids = FALSE, $channel = array()) {
 }
 
 /**
- * Construct a drupal_render() style array from an array of loaded nodes.
+ * Constructs a drupal_render() style array from an array of loaded nodes.
  *
  * @param $nodes
  *   An array of nodes as returned by node_load_multiple().
@@ -2673,7 +2673,7 @@ function node_view_multiple($nodes, $view_mode = 'teaser', $weight = 0, $langcod
 }
 
 /**
- * Menu callback; Generate a listing of promoted nodes.
+ * Menu callback: Generates a listing of promoted nodes.
  *
  * @return array
  *   An array in the format expected by drupal_render().
@@ -2728,7 +2728,7 @@ function node_page_default() {
 }
 
 /**
- * Menu callback; view a single node.
+ * Menu callback: Displays a single node.
  *
  * @param $node
  *   The node object.
@@ -2765,7 +2765,7 @@ function node_update_index() {
 }
 
 /**
- * Index a single node.
+ * Indexes a single node.
  *
  * @param $node
  *   The node to index.
@@ -2869,7 +2869,7 @@ function node_form_search_form_alter(&$form, $form_state) {
 }
 
 /**
- * Form API callback for the search form. Registered in node_form_alter().
+ * Form validation handler for node_form_alter().
  */
 function node_search_validate($form, &$form_state) {
   // Initialize using any existing basic search keywords.
@@ -2956,8 +2956,7 @@ function node_search_validate($form, &$form_state) {
  */
 
 /**
- * Determine whether the current user may perform the given operation on the
- * specified node.
+ * Determines whether the current user may perform the operation on the node.
  *
  * @param $op
  *   The operation to be performed on the node. Possible values are:
@@ -2971,6 +2970,7 @@ function node_search_validate($form, &$form_state) {
  * @param $account
  *   Optional, a user object representing the user for whom the operation is to
  *   be performed. Determines access for a user other than the current user.
+ *
  * @return
  *   TRUE if the operation may be performed, FALSE otherwise.
  */
@@ -3160,7 +3160,7 @@ function node_permissions_get_configured_types() {
 }
 
 /**
- * Fetch an array of permission IDs granted to the given user ID.
+ * Fetches an array of permission IDs granted to the given user ID.
  *
  * The implementation here provides only the universal "all" grant. A node
  * access module should implement hook_node_grants() to provide a grant list for
@@ -3544,16 +3544,15 @@ function node_access_write_grants($node, $grants, $realm = NULL, $delete = TRUE)
 }
 
 /**
- * Flag / unflag the node access grants for rebuilding, or read the current
- * value of the flag.
+ * Flags or unflags the node access grants for rebuilding.
  *
+ * If the argument isn't specified, the current value of the flag is returned.
  * When the flag is set, a message is displayed to users with 'access
  * administration pages' permission, pointing to the 'rebuild' confirm form.
  * This can be used as an alternative to direct node_access_rebuild calls,
  * allowing administrators to decide when they want to perform the actual
- * (possibly time consuming) rebuild.
- * When unsure if the current user is an administrator, node_access_rebuild()
- * should be used instead.
+ * (possibly time consuming) rebuild. When unsure if the current user is an
+ * administrator, node_access_rebuild() should be used instead.
  *
  * @param $rebuild
  *   (Optional) The boolean value to be written.
@@ -3576,15 +3575,15 @@ function node_access_needs_rebuild($rebuild = NULL) {
 }
 
 /**
- * Rebuild the node access database. This is occasionally needed by modules
- * that make system-wide changes to access levels.
+ * Rebuilds the node access database.
  *
- * When the rebuild is required by an admin-triggered action (e.g module
- * settings form), calling node_access_needs_rebuild(TRUE) instead of
+ * This is occasionally needed by modules that make system-wide changes to
+ * access levels. When the rebuild is required by an admin-triggered action (e.g
+ * module settings form), calling node_access_needs_rebuild(TRUE) instead of
  * node_access_rebuild() lets the user perform his changes and actually
  * rebuild only once he is done.
  *
- * Note : As of Drupal 6, node access modules are not required to (and actually
+ * Note: As of Drupal 6, node access modules are not required to (and actually
  * should not) call node_access_rebuild() in hook_enable/disable anymore.
  *
  * @see node_access_needs_rebuild()