diff --git a/Large-app-how-to.md b/Large-app-how-to.md
index 59e223b..d4656dc 100644
--- a/Large-app-how-to.md
+++ b/Large-app-how-to.md
@@ -233,12 +233,68 @@ The view is where we'll declare our Blueprint. Using url_prefix will prefix ever
 
 ## First template
 
+Jinja is integrated within Flask. One of the great feature of Jinja is the inheritance and the logic available (conditional structure, loop, context modification...). We'll create a `base.html` template from which we'll inherit from on each of our template. You can even have more than 1 inheritance (like having your template inheriting from twocolumn.html template which itself inherit from main.html)
+
+    <html>
+      <head>
+        <title>{% block title %}My Site{% endblock %}</title>
+        {% block css %}
+        <link rel="stylesheet" href="/static/css/reset-min.css" />
+        <link rel="stylesheet" href="/static/css/main.css" />
+        {% endblock %}
+        {% block script %}
+        <script src="src="/static/js/main.js" type="text/javascript"></script>
+        {% endblock %}
+      </head>
+      <body>
+        <div id="header>{% block header %}{% endblock%}</div>
+        <div id="content>{% block content %}{% endblock%}</div>
+        <div id="footer>{% block footer %}{% endblock%}</div>
+      </body>
+    </html>
+
+Now we won't have to redefine our html structure anymore, and any modification done on `base.py` will be visible on all your child templates. Here is the `/app/templates/users/register.html` template (It's a good habit to use the view name to for the template file name).
+
+    {% extends "base.html" %}
+    {% block content %}
+      {% from "forms/macros.html" import render_field %}
+      <form method="POST" action="." class="form">
+        {{ form.csrf }}
+        {{ render_field(form.name, class="input text") }}
+        {{ render_field(form.email, class="input text") }}
+        {{ render_field(form.password, class="input text") }}
+        {{ render_field(form.confirm, class="input text") }}
+        {{ render_field(form.accept_tos, class="input checkbox") }}
+        <label>Repcaptcha</label>
+        {{ form.repcaptcha }}
+        <input type="submit" value="Register" class="button green">
+      </form>
+      <a href="{{ url_for('restaurant.register') }}">Register a restaurant</a>
+    {% endblock %}
+
+This template will use a macro to automate the construction of html fields. This macro will be stored in `/app/forms/macros.html` (since this macro will be called in different module, we'll store it in a separated file).
+
+    {% macro render_field(field) %}
+        <div class="form_field">
+        {{ field.label(class="label") }}
+        {% if field.errors %}
+            {% set css_class = 'has_error ' + kwargs.pop('class', '') %}
+            {{ field(class=css_class, **kwargs) }}
+            <ul class="errors">{% for error in field.errors %}<li>{{ error|e }}</li>{% endfor %}</ul>
+        {% else %}
+            {{ field(**kwargs) }}
+        {% endif %}
+        </div>
+    {% endmacro %}
+
+
+ 
 ## Settings up the app
 
 Here is the `/app/__init__.py` 
 
 
-    from flask import Flask, render_template                                                                                                                                                                      
+    from flask import Flask, render_template
     from flaskext.sqlalchemy import SQLAlchemy
 
     app = Flask(__name__)
@@ -253,3 +309,4 @@ Here is the `/app/__init__.py`
     from app.users.views import mod as usersModule
 
     app.register_blueprint(usersModule)
+
