diff --git a/cookbook/session/index.rst b/cookbook/session/index.rst
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+Sessions
+========
+
+.. toctree::
+    :maxdepth: 2
+
+    proxy_examples
diff --git a/cookbook/session/proxy_examples.rst b/cookbook/session/proxy_examples.rst
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+.. index::
+   single: Sessions, session proxy, proxy
+
+Session Proxy Examples
+----------------------
+
+The session proxy mechanism has a variety of uses, this
+example demonstrates two common uses. Rather than injecting
+the session handler as normal, a handler is injected into the proxy
+and registered with the session storage driver::
+
+    <?php
+    use Symfony\Component\HttpFoundation\Session\Session;
+    use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;
+    use Symfony\Component\HttpFoundation\Session\Storage\Handler\PdoSessionStorage;
+
+    $proxy = new YourProxy(new PdoSessionStorage());
+    $session = new Session(new NativeSessionStorage($proxy));
+
+The examples below show elaborate on two use-cases.
+
+Encryption of Session Data
+--------------------------
+
+If you wanted to encrypt the session data you could use the proxy to encrypt
+and decrypt the session as required::
+
+    <?php
+    use Symfony\Component\HttpFoundation\Session\Storage\Proxy\SessionHandlerProxy;
+
+    class EncryptedSessionProxy extends SessionHandlerProxy
+    {
+        private $key;
+
+        public function __construct(\SessionHandlerInterface $handler, $key)
+        {
+            $this->key = $key;
+
+            parent::__construct($handler);
+        }
+
+        public function read($id)
+        {
+            $data = parent::write($id, $data);
+
+            return mcrypt_decrypt(\MCRYPT_3DES, $this->key, $data);
+        }
+
+        public function write($id, $data)
+        {
+            $data = mcrypt_encrypt(\MCRYPT_3DES, $this->key, $data);
+
+            return parent::write($id, $data);
+        }
+    }
+
+
+Readonly Guest sessions
+-----------------------
+
+There are some applications where a session is required for guest
+users, but there is no particular need persist the session. In this
+case you can intercept the session before it writes::
+
+    <?php
+    use Foo\User;
+    use Symfony\Component\HttpFoundation\Session\Storage\Proxy\SessionHandlerProxy;
+
+    class ReadOnlyGuestSessionProxy extends SessionHandlerProxy
+    {
+        private $user;
+
+        public function __construct(\SessionHandlerInterface $handler, User $user)
+        {
+            $this->user = $user;
+
+            parent::__construct($handler);
+        }
+
+        public function write($id, $data)
+        {
+            if ($this->user->isGuest()) {
+                return;
+            }
+
+            return parent::write($id, $data);
+        }
+    }
+