diff --git a/clients/guzzle5-adapter.rst b/clients/guzzle5-adapter.rst
index bbdac9c..4b441c3 100644
--- a/clients/guzzle5-adapter.rst
+++ b/clients/guzzle5-adapter.rst
@@ -1,2 +1,52 @@
 Guzzle5 Adapter
 ===============
+
+An HTTPlug adapter for the `Guzzle 5 HTTP client`_.
+
+Installation
+------------
+
+To install the Guzzle adapter, which will also install Guzzle itself (if it was
+not yet included in your project), run:
+
+.. code-block:: bash
+
+    $ composer require php-http/guzzle5-adapter
+
+.. include:: includes/install-message-factory.inc
+
+.. include:: includes/install-discovery.inc
+
+Usage
+-----
+
+Begin by creating a Guzzle client, passing any configuration parameters you
+like::
+
+    use GuzzleHttp\Client as GuzzleClient;
+
+    $config = [
+        // Config params
+    ];
+    $guzzle = new GuzzleClientClient($config);
+
+Then create the adapter::
+
+    use Http\Adapter\Guzzle5\Client as GuzzleAdapter;
+    use Http\Message\MessageFactory\GuzzleMessageFactory;
+
+    $adapter = new GuzzleAdapter($guzzle, new GuzzleMessageFactory());
+
+Or if you installed the :doc:`discovery </discovery>` layer::
+
+    use Http\Adapter\Guzzle5\Client as GuzzleAdapter;
+
+    $adapter = new GuzzleAdapter($guzzle);
+
+.. warning::
+
+    The message factory parameter is mandatory if the discovery layer is not installed.
+
+.. include:: includes/further-reading-sync.inc
+
+.. _Guzzle 5 HTTP client: http://docs.guzzlephp.org/en/5.3/
diff --git a/clients/guzzle6-adapter.rst b/clients/guzzle6-adapter.rst
index 55f4b27..3d510e0 100644
--- a/clients/guzzle6-adapter.rst
+++ b/clients/guzzle6-adapter.rst
@@ -3,6 +3,9 @@ Guzzle 6 Adapter
 
 An HTTPlug adapter for the `Guzzle 6 HTTP client`_.
 
+Installation
+------------
+
 To install the Guzzle adapter, which will also install Guzzle itself (if it was
 not yet included in your project), run:
 
@@ -10,7 +13,10 @@ not yet included in your project), run:
 
     $ composer require php-http/guzzle6-adapter
 
-Then begin by creating a Guzzle client, passing any configuration parameters you
+Usage
+-----
+
+Begin by creating a Guzzle client, passing any configuration parameters you
 like::
 
     use GuzzleHttp\Client as GuzzleClient;
diff --git a/clients/includes/install-discovery.inc b/clients/includes/install-discovery.inc
new file mode 100644
index 0000000..68c431d
--- /dev/null
+++ b/clients/includes/install-discovery.inc
@@ -0,0 +1,6 @@
+Alternatively you can install the :doc:`discovery </discovery>` layer
+to be able to automatically find installed resources, like factories:
+
+.. code-block:: bash
+
+    $ composer require php-http/discovery
diff --git a/clients/includes/install-message-factory.inc b/clients/includes/install-message-factory.inc
new file mode 100644
index 0000000..6ef7db4
--- /dev/null
+++ b/clients/includes/install-message-factory.inc
@@ -0,0 +1,18 @@
+This client does not come with a PSR-7 implementation out of the box, so you have
+to install one as well (for example `Guzzle PSR-7`_):
+
+.. code-block:: bash
+
+    $ composer require guzzlehttp/psr7
+
+In order to provide full interoperability, message implementations are
+accessed through :doc:`factories </message/message-factory>`. Message factories for
+`Diactoros`_ and `Guzzle PSR-7`_ are available in the
+:doc:`message </message>` component:
+
+.. code-block:: bash
+
+    $ composer require php-http/message
+
+.. _Diactoros: http://docs.guzzlephp.org/en/5.3/
+.. _Guzzle PSR-7: https://github.com/guzzle/psr7
diff --git a/clients/socket-client.rst b/clients/socket-client.rst
index b1a2875..66e5895 100644
--- a/clients/socket-client.rst
+++ b/clients/socket-client.rst
@@ -21,6 +21,8 @@ To install the Socket client, run:
 
     $ composer require php-http/socket-client
 
+.. include:: includes/install-message-factory.inc
+
 Usage
 -----