diff --git a/readme.md b/readme.md
index 2190791..03d9c2d 100644
--- a/readme.md
+++ b/readme.md
@@ -1,13 +1,13 @@
 Ary 
 ===
-Are you tired from casting objects and arrays to each other? Don't do that anymore! Ary is a light class/function that makes accessing array items more convenient.  
+
+Are you tired from casting objects and arrays to each other or are bored using is `isset`? Don't do those anymore! 
+Ary is a light class/function that makes accessing array items more convenient.   
 
 1. You can access array items using `->` or `['']` syntax.
 2. You will get `null` if an index does not exists (instead of a nasty notification!)
 3. You can specify a default value for missing indexes.
-
-* The class (`Ary()`) requires PHP 5.4 or newer.
-* The helper function (`ary()`) requires PHP 5.6 or newer. 
+4. You can set/get a value within a deeply nested array using "dot" notation.
 
 Examples
 --------
@@ -17,30 +17,42 @@ $ary = new Ary();
 // or simply
 $ary = ary();
 
-//setting and getting array items.
-
-$ary = ary(2, 4, 6, 8); //or
+//Initialization
+$ary = ary(2, 4, 6, 8); // or
 $ary = ary([2, 4, 6, 8]); 
-
 $ary = ary(['x' => 'foo', 'y' => 'bar']);
-$foo = $ary->x; //or
-$foo = $ary['x'];
-
-$missed = $ary->get('missed', 'Default value');
 
+//Assignment;
 $ary->newItem=20; //or
 $ary['newItem']=20;
 
-count($ary); //returns 3
-$ary->all(); // returns simple php array;
-~~~~~~
+//Retrieval
+$foo = $ary->x; //or
+$foo = $ary['x'];
+$missed = $ary->get('missed', 'Default value');
+$ary->all(); // returns the simple php array;
 
+// behave similar to regular arrays
+count($ary); //returns 3
+unset($ary[0]); 
+
+// deep assignment/retrieval
+$ary = ary(['products' => ['desk' => ['price' => 100]]]);
+$value = $ary['products.desk.price']; //100
+$ary['production.table.weight']=200; 
+
+~~~~~~
 
 Installation
 ============
+Simply, `include '__DIR__.'/src/helper.php';`
 
+or using Composer:
+    
     composer require salarmehr/ary
     
+* The class (`Ary()`) requires PHP 5.4 or newer.
+* The helper function (`ary()`) requires PHP 5.6 or newer. 
     
 Licence
 =======
diff --git a/src/Ary.php b/src/Ary.php
index db50e97..71df75e 100644
--- a/src/Ary.php
+++ b/src/Ary.php
@@ -97,7 +97,16 @@ class Ary implements ArrayAccess, Countable, IteratorAggregate, JsonSerializable
         if ($this->offsetExists($key)) {
             return $this->items[$key];
         }
-        return $default;
+
+        $array = $this->items;
+        foreach (explode('.', $key) as $segment) {
+            if (!is_array($array) || !array_key_exists($segment, $array)) {
+                return $default;
+            }
+
+            $array = $array[$segment];
+        }
+        return $array;
     }
 
     /**
@@ -122,10 +131,28 @@ class Ary implements ArrayAccess, Countable, IteratorAggregate, JsonSerializable
     {
         if (is_null($key)) {
             $this->items[] = $value;
+            return;
         }
-        else {
-            $this->items[$key] = $value;
+
+//        $this->items[$key] = $value;
+
+        $keys = explode('.', $key);
+        $array =& $this->items;
+        while (count($keys) > 1) {
+            $key = array_shift($keys);
+
+            // If the key doesn't exist at this depth, we will just create an empty array
+            // to hold the next value, allowing us to create the arrays to hold final
+            // values at the correct depth. Then we'll keep digging into the array.
+            if (!isset($array[$key]) || !is_array($array[$key])) {
+                $array[$key] = [];
+            }
+
+            $array = &$array[$key];
         }
+
+        $array[array_shift($keys)] = $value;
+        return;
     }
 
     /**
diff --git a/test/Test.php b/test/Test.php
index f79145b..5a04d72 100644
--- a/test/Test.php
+++ b/test/Test.php
@@ -61,6 +61,9 @@ class Test extends PHPUnit_Framework_TestCase
     {
         $ary = new Ary();
         $this->assertEquals($ary[0], null);
+
+        $ary = new Ary(['x' => ['xx' => ['m' => 'xxx']]]);
+        $this->assertEquals($ary->get('x.xx.m'), 'xxx');
     }