diff --git a/README.md b/README.md
index 70c204a..80d20aa 100644
--- a/README.md
+++ b/README.md
@@ -4,10 +4,18 @@ BingPhoto is a simple PHP class to fetch Bing's image of the day with meta data.
 
 It is also possible to cache the images locally, which can be useful in combination with a periodic cronjob. See the `cacheDir` parameter for this (optional) feature. Disclaimer: this might be a copyright issue.
 
+## Installation
+
+Use [Composer](https://getcomposer.org/) to install this package:
+
+```sh
+composer require grubersjoe/bing-daily-photo
+```
+
 ## Basic usage
 
 ```php
-$bing = new BingPhoto();
+$bing = new grubersjoe\BingPhoto();
 $image = $bing->getImage();
 
 // Example result ($image)
@@ -41,9 +49,9 @@ Breaking change: the parameter `resolution` was renamed to `quality`. See also t
 
 ```php
 // Fetches two images of the day starting yesterday from Bing
-$bing = new BingPhoto([
+$bing = new grubersjoe\BingPhoto([
     'n' => 2,
-    'date' => BingPhoto::YESTERDAY
+    'date' => grubersjoe\BingPhoto::YESTERDAY
 ]);
 
 foreach ($bing->getImages() as $image) {
@@ -53,9 +61,9 @@ foreach ($bing->getImages() as $image) {
 
 ```php
 // Fetches the current image of the day in low resolution from the French Bing portal
-$bing = new BingPhoto([
+$bing = new grubersjoe\BingPhoto([
     'locale' => 'fr-FR',
-    'quality' => BingPhoto::QUALITY_LOW,
+    'quality' => grubersjoe\BingPhoto::QUALITY_LOW,
 ]);
 
 printf('<img src="%s">', $bing->getImage()['url']);
@@ -63,11 +71,11 @@ printf('<img src="%s">', $bing->getImage()['url']);
 
 ```php
 // Fetches three images of the day in high quality from the German Bing portal, starting yesterday
-$bing = new BingPhoto([
+$bing = new grubersjoe\BingPhoto([
     'n' => 3,
-    'date' => BingPhoto::YESTERDAY,
+    'date' => grubersjoe\BingPhoto::YESTERDAY,
     'locale' => 'de-DE',
-    'quality' => BingPhoto::QUALITY_HIGH,
+    'quality' => grubersjoe\BingPhoto::QUALITY_HIGH,
 ]);
 
 foreach ($bing->getImages() as $image) {
@@ -78,9 +86,9 @@ foreach ($bing->getImages() as $image) {
 ```php
 // Using the local cache 
 // (remember to create the directory first!)
-$bing = new BingPhoto([
+$bing = new grubersjoe\BingPhoto([
     'cacheDir' => '/tmp/bing-photo',
     'n' => 5,
-    'quality' => BingPhoto::QUALITY_LOW,
+    'quality' => grubersjoe\BingPhoto::QUALITY_LOW,
 ]);
 ```
diff --git a/composer.json b/composer.json
index 7bd4dbe..5e0e930 100644
--- a/composer.json
+++ b/composer.json
@@ -1,4 +1,22 @@
 {
+    "name": "grubersjoe/bing-daily-photo",
+    "description": "A class to fetch Bing's image of the day with meta data",
+    "keywords": ["bing", "daily", "photo"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Jonathan Gruber",
+            "homepage": "https://grubersjoe.de"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "grubersjoe\\": "src/"
+        }
+    },
+    "require": {
+        "php": "^5.6.0 || ^7.0"
+    },
     "require-dev": {
         "phpunit/phpunit": "^7.0"
     }
diff --git a/BingPhoto.php b/src/BingPhoto.php
similarity index 93%
rename from BingPhoto.php
rename to src/BingPhoto.php
index 28f4cef..83c49e7 100644
--- a/BingPhoto.php
+++ b/src/BingPhoto.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace grubersjoe;
+
 /**
  * A simple class which fetches Bing's image of the day with meta data
  */
@@ -32,7 +34,7 @@ class BingPhoto
      *      $args['locale'] string Localization string (en-US, de-DE, ...)
      *      $args['n'] int Number of images / days
      *      $args['quality'] string Resolution of images(s)
-     * @throws Exception
+     * @throws \Exception
      */
     public function __construct(array $args = [])
     {
@@ -45,7 +47,7 @@ public function __construct(array $args = [])
             if (file_exists($cacheDir)) {
                 $this->cacheImages();
             } else {
-                throw new Exception(sprintf('Given cache directory %s does not exist', $cacheDir));
+                throw new \Exception(sprintf('Given cache directory %s does not exist', $cacheDir));
             }
         }
     }
@@ -100,7 +102,7 @@ private function setArgs(array $args)
         $defaultArgs = [
             'cacheDir' => false,
             'date' => self::TODAY,
-            'locale' => str_replace('_', '-', Locale::getDefault()),
+            'locale' => str_replace('_', '-', \Locale::getDefault()),
             'n' => 1,
             'quality' => self::QUALITY_HIGH,
         ];
@@ -126,7 +128,7 @@ private function sanitizeArgs(array $args)
 
     /**
      * Fetches the image meta data from Bing (JSON)
-     * @throws Exception
+     * @throws \Exception
      */
     private function fetchImagesMetadata()
     {
@@ -140,7 +142,7 @@ private function fetchImagesMetadata()
             $this->setAbsoluteUrl();
             $this->setQuality();
         } else {
-            throw new Exception('Unable to retrieve JSON data: ' . $error);
+            throw new \Exception('Unable to retrieve JSON data: ' . $error);
         }
     }
 
@@ -153,14 +155,14 @@ private function cacheImages()
         $fetchList = [];
 
         // Build a list of to be cached dates
-        $baseDate = (new DateTime())->modify(sprintf('-%d day', $this->args['date'] - 1));
+        $baseDate = (new \DateTime())->modify(sprintf('-%d day', $this->args['date'] - 1));
         for ($i = 0; $i < $this->args['n']; $i++) {
             $date = $baseDate->modify('-1 day')->format('Ymd');
             $fetchList[$date] = true;
         }
 
         // Check current cache
-        $dirIterator = new DirectoryIterator($this->args['cacheDir']);
+        $dirIterator = new \DirectoryIterator($this->args['cacheDir']);
         foreach ($dirIterator as $image) {
             if ($image->isFile() && $image->getExtension() === 'jpg') {
                 $imageShouldBeCached = in_array($image->getBasename('.jpg'), array_keys($fetchList));
@@ -198,7 +200,7 @@ private function fetchImageFiles(array $fetchList)
                     }
                 }
             }
-        } catch (Exception $e) {
+        } catch (\Exception $e) {
             error_log($e->getMessage());
             exit($e->getMessage());
         }
diff --git a/BingPhotoTest.php b/src/BingPhotoTest.php
similarity index 92%
rename from BingPhotoTest.php
rename to src/BingPhotoTest.php
index a238db5..92cb432 100644
--- a/BingPhotoTest.php
+++ b/src/BingPhotoTest.php
@@ -1,5 +1,7 @@
 <?php
 
+namespace grubersjoe;
+
 use PHPUnit\Framework\TestCase;
 
 require('BingPhoto.php');
@@ -10,7 +12,7 @@ class BingPhotoTest extends TestCase
      * @dataProvider invalidArgumentProvider
      * @param $expected
      * @param $args
-     * @throws Exception
+     * @throws \Exception
      */
     public function testArgsValidation($expected, $args = [])
     {
@@ -25,12 +27,12 @@ public function testArgsValidation($expected, $args = [])
     /**
      * @dataProvider countArgsProvider
      * @param $args
-     * @throws Exception
+     * @throws \Exception
      */
     public function testCount($args = [])
     {
         $bingPhoto = new BingPhoto($args);
-        $count = min($args['n'] ?? 1, BingPhoto::LIMIT_N);
+        $count = min(isset($args['n']) ? $args['n'] : 1, BingPhoto::LIMIT_N);
         $this->assertCount($count, $bingPhoto->getImages());
     }
 
@@ -40,21 +42,22 @@ public function testCount($args = [])
     /**
      * @dataProvider qualityArgsProvider
      * @param $args
-     * @throws Exception
+     * @throws \Exception
      */
     public function testQuality($args = [])
     {
         $bingPhoto = new BingPhoto($args);
         foreach ($bingPhoto->getImages() as $image) {
             list($width, $height) = getimagesize($image['url']);
-            $this->assertEquals($width . 'x' . $height, $args['quality'] ?? BingPhoto::QUALITY_HIGH);
+            $quality = isset($args['quality']) ? $args['quality'] : BingPhoto::QUALITY_HIGH;
+            $this->assertEquals($width . 'x' . $height, $quality);
         }
     }
 
     /**
      * @dataProvider cacheArgsProvider
      * @param $args
-     * @throws Exception
+     * @throws \Exception
      */
     public function testCache($args = [])
     {
@@ -97,12 +100,12 @@ public function testCache($args = [])
     /**
      * @dataProvider invalidCacheArgsProvider
      * @param $args
-     * @throws Exception
+     * @throws \Exception
      */
     public function testInvalidCache($args = [])
     {
         if (!empty($args['cacheDir']) && !file_exists($args['cacheDir'])) {
-            $this->expectException(Exception::class);
+            $this->expectException(\Exception::class);
         }
 
         $bingPhoto = new BingPhoto($args);