diff --git a/docs/conf.py b/docs/conf.py
index 97f8656..fd4e497 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -48,9 +48,9 @@ copyright = u'2012-2016, Cédric Bonhomme'
 # built documents.
 #
 # The short X.Y version.
-version = '0.7'
+version = '0.5.1'
 # The full version, including alpha/beta/rc tags.
-release = '0.7'
+release = '0.5.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/docs/index.rst b/docs/index.rst
index dbe975b..65a6bc5 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -9,35 +9,20 @@ Welcome to Stéganô's documentation!
 Presentation
 ============
 
-.. figure:: https://api.travis-ci.org/cedricbonhomme/Stegano.svg?branch=master
-    :align: left
-    :target: https://travis-ci.org/cedricbonhomme/Stegano
-
-
 Stéganô_ is a Python steganography_ module.
-Steganography is the art and science of writing hidden messages in such a way that no one,
-apart from the sender and intended recipient, suspects the existence of the message, a form
-of security through obscurity. Consequently, functions provided by Stéganô only hide message,
-without encryption. Indeed steganography is often used with cryptography.
 
+Steganography is the art and science of writing hidden messages in such a way
+that no one, apart from the sender and intended recipient, suspects the
+existence of the message, a form of security through obscurity.
+Consequently, functions provided by Stéganô only hide messages,
+without encryption. Steganography is often used with cryptography.
 
-
-Requirements
-============
-
-- Python_ >= 3.2 (tested with Python 3.3.1);
-- `Pillow`_.
-
-
-Methods of hiding
-=================
-
-For the moment, Stéganô implements these methods of hiding:
+Stéganô implements these methods of hiding:
 
 - using the red portion of a pixel to hide ASCII messages;
 - using the `Least Significant Bit <http://en.wikipedia.org/wiki/Least_significant_bit>`_ (LSB) technique;
 - using the LSB technique with sets based on generators (Sieve for Eratosthenes, Fermat, Mersenne numbers, etc.);
-- using the description field of the image (JPEG).
+- using the description field of the image (JPEG and TIFF).
 
 Moreover some methods of steganalysis_ are provided:
 
@@ -45,10 +30,24 @@ Moreover some methods of steganalysis_ are provided:
 - statistical steganalysis.
 
 
+Requirements
+============
+
+- Python_ >= 3.2 (tested with Python 3.5.1);
+- `Pillow`_;
+- `piexif`_.
+
+
 Turorial
 ========
 
-More information available at the :doc:`tutorial </tutorial>` page
+.. toctree::
+    :maxdepth: 2
+
+    tutorial
+
+You can also take a look at the
+`unit tests <https://github.com/cedricbonhomme/Stegano/tree/master/tests>`_.
 
 
 License
@@ -70,8 +69,9 @@ Contact
 `My home page <https://www.cedricbonhomme.org>`_
 
 
-.. _Python: http://python.org
+.. _Python: https://www.python.org
 .. _Stéganô: https://github.com/cedricbonhomme/Stegano
 .. _`Pillow`: https://pypi.python.org/pypi/Pillow
+.. _`piexif`: https://pypi.python.org/pypi/piexif
 .. _steganography: http://en.wikipedia.org/wiki/Steganography
 .. _steganalysis: http://en.wikipedia.org/wiki/Steganalysis
diff --git a/docs/tutorial.rst b/docs/tutorial.rst
index de9e176..406d8a8 100644
--- a/docs/tutorial.rst
+++ b/docs/tutorial.rst
@@ -1,10 +1,3 @@
-Getting the source code of Stéganô
-==================================
-
-.. code-block:: bash
-
-    $ git clone https://github.com/cedricbonhomme/Stegano.git
-
 Installation
 ============
 
@@ -12,22 +5,53 @@ Installation
 
     $ sudo pip install Stegano
 
-Now you will be able to use Stéganô in your Python program.
+You will be able to use Stéganô in your Python programs
+or as a command line tool.
+
+If you want to retrieve the source code (with the unit tests):
+
+.. code-block:: bash
+
+    $ git clone https://github.com/cedricbonhomme/Stegano.git
+
+.. image:: https://api.travis-ci.org/cedricbonhomme/Stegano.svg?branch=master
+    :target: https://travis-ci.org/cedricbonhomme/Stegano
 
 Using Stéganô as a Python module
 ================================
 
+LSB method
+----------
+
 .. code-block:: python
 
-    Python 2.7 (r27:82500, Jul  5 2010, 10:14:47)
-    [GCC 4.3.2] on linux2
+    Python 3.5.1 (default, Dec  7 2015, 11:33:57)
+    [GCC 4.9.2] on linux
     Type "help", "copyright", "credits" or "license" for more information.
     >>> from stegano import slsb
-    >>> secret = slsb.hide("./pictures/Lenna.png", "Hello world!")
+    >>> secret = slsb.hide("./examples/pictures/Lenna.png", "Hello world!")
     >>> secret.save("./Lenna-secret.png")
-    >>> slsb.reveal("./Lenna-secret.png")
+    >>> print(slsb.reveal("./Lenna-secret.png"))
     Hello world!
 
+Description field of the image
+------------------------------
+
+For JPEG and TIFF images.
+
+.. code-block:: python
+
+    Python 3.5.1 (default, Dec  7 2015, 11:33:57)
+    [GCC 4.9.2] on linux
+    Type "help", "copyright", "credits" or "license" for more information.
+    >>> from stegano import exifHeader
+    >>> secret = exifHeader.hide("./examples/pictures/20160505T130442.jpg",
+                            "./image.jpg", secret_message="Hello world!")
+    >>> print(exifHeader.reveal("./image.jpg"))
+
+More examples are available in the
+`tests <https://github.com/cedricbonhomme/Stegano/tree/master/tests>`_.
+
 Using Stéganô in command line for your scripts
 ==============================================