diff --git a/measurement_protocol.module b/measurement_protocol.module
index 80c7beb..f283644 100644
--- a/measurement_protocol.module
+++ b/measurement_protocol.module
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * @file
  * Google Measurement Protocol module.
@@ -11,19 +12,19 @@
  * helper functions that are better suited to their individual tasks.
  *
  * @param array $data
- *   An array containing one or more data keys. See the below functions for
- *   more information on how to use.
+ *   An array containing one or more data keys. See the functions below for
+ *   more information on how to use them.
  *
  * @see mptph()
  * @see mpte()
  *
  * @return array
- *   The prepared payload, ready to be sent to Google. If null is returned,
+ *   The prepared payload, ready to be sent to Google. If NULL is returned,
  *   then the account was not set.
  */
 function measurement_protocol_create_create_payload($data) {
 
-  // Grab this from the googlanalytics module.
+  // Grab this from the googleanalytics module.
   $payload['tid'] = variable_get('googleanalytics_account', '');
 
   if ($payload['tid'] === '') {
@@ -75,14 +76,15 @@ function measurement_protocol_send_action($data) {
 }
 
 /**
- * Build and send an MP payload.
+ * Builds and sends an MP payload.
  *
- * Takes data as it's parameter. Builds a GA payload and then sends the
- * data to the collection service. While you could use this directly, it is
- * recommended to use Helper functions.
+ * Takes data as its parameter. Builds a GA payload and then sends the data
+ * to the collection service. While you could use this directly, it is
+ * recommended to use helper functions.
  *
  * @param array $data
- *    An array containing keys with one or more data points to send to Google.
+ *    An associative array containing keys with one or more data points to send
+ *    to Google.
  */
 function mpt($data) {
   $data = measurement_protocol_create_create_payload($data);
@@ -98,7 +100,7 @@ function mpt($data) {
 }
 
 /**
- * Track a page hit with Google Analytics.
+ * Tracks a page hit with Google Analytics.
  *
  * @param array $data
  *   (required) An array describes the page hit:
@@ -112,14 +114,14 @@ function mptph($data) {
 }
 
 /**
- * Track an event with Google Analytics.
+ * Tracks an event with Google Analytics.
  *
  * @param string $category
  *   The event category.
  * @param string $action
  *   The event action.
  * @param string $label
- *   The event label.
+ *   (optional) The event label.
  * @param int $value
  *   (optional) The event value.
  * @param array $data
@@ -146,7 +148,7 @@ function mpte($category, $action, $label = NULL, $value = NULL, $data = array())
  *
  * @return string
  *   Returns some sort of cookie value. I'm not sure where these values come
- *   from honestly. Maybe the googleanalytics module...
+ *   from, honestly. Maybe the googleanalytics module . . .
  */
 function measurement_protocol_get_cookie() {
   if (isset($_COOKIE['_ga'])) {
@@ -158,7 +160,7 @@ function measurement_protocol_get_cookie() {
 }
 
 /**
- * Generates a UUID.
+ * Generates a UUID (version 4).
  *
  * @return string
  *   A string containing a UUID.