diff --git a/doc/installation.rst b/doc/installation.rst
index 66a2c3620..457745617 100644
--- a/doc/installation.rst
+++ b/doc/installation.rst
@@ -38,6 +38,13 @@ or easy_install::
 
    easy_install django django-profiles django-authopenid south
 
+In DEBUG mode (Default mode)
+____________________________
+
+ * Django Debug Toolbar::
+
+   Download at https://github.com/django-debug-toolbar/django-debug-toolbar
+
 Quick Start
 -----------
 
@@ -62,8 +69,8 @@ You should see the following output::
 Specifying a different database
 -------------------------------
 
-This is done by modifying the DATABASES dictionary in your local_settings.py file
-(create it in Authentic project directory); for example::
+This is done by modifying the DATABASES dictionary in your local_settings.py
+file (create it in Authentic project directory); for example::
 
  DATABASES['default'] = {
    'ENGINE': 'django.db.backends.postgresql',
@@ -84,11 +91,30 @@ How to upgrade to a new version of authentic ?
 Authentic store all its data in a relational database as specified in its
 settings.py or local_settings.py file. So in order to upgrade to a new version
 of authentic you have to update your database schema using the
-migration command — you will need to have installed the dependency django-south,
-see the beginning of this README file.::
+migration command — you will need to have installed the dependency
+django-south, see the beginning of this README file.::
 
   python ./manage.py migrate
 
 Then you will need to create new tables if there are.::
 
   python ./manage.py syncdb
+
+DEBUG Mode by default, static files and the Django debug toolbar dependency ?
+-----------------------------------------------------------------------------
+
+By default, Authentic 2 is in the DEBUG mode. As a matter of fact, static
+files are only served by the Django development server when the project is
+run in the DEBUG mode.
+
+Then, we made this temporary choice (DEBUG mode by default) because most
+of the users will begin with Authentic 2 using the Django development server
+and we want to avoid that people have a bad first impression because static
+files would not be served.
+
+In production, the Django development server should not be used and a
+dedicated server should be used to serve the static files.
+
+In the DEBUG mode, the Django Debug Toolbar is used. Then, by default,
+Authentic 2 is also dependant of this module. Find more information on
+https://github.com/django-debug-toolbar/django-debug-toolbar#readme.