diff --git a/jsoninspector.glade b/jsoninspector.glade
index e7d7f17..89f3d1d 100644
--- a/jsoninspector.glade
+++ b/jsoninspector.glade
@@ -8,6 +8,8 @@
       <column type="gchararray"/>
       <!-- column-name value_val -->
       <column type="gchararray"/>
+      <!-- column-name type_val -->
+      <column type="gchararray"/>
     </columns>
   </object>
   <object class="GtkWindow" id="MainWindow">
@@ -121,6 +123,13 @@
                     <property name="expand">True</property>
                   </object>
                 </child>
+                <child>
+                  <object class="GtkTreeViewColumn" id="treeviewcolumn3">
+                    <property name="resizable">True</property>
+                    <property name="title">Tipo</property>
+                    <property name="expand">True</property>
+                  </object>
+                </child>
               </object>
             </child>
           </object>
diff --git a/jsoninspector.py b/jsoninspector.py
index 19fa18d..9cf319d 100644
--- a/jsoninspector.py
+++ b/jsoninspector.py
@@ -38,6 +38,11 @@ class MainWindowMethods(object):
         columns.pack_start(cell)
         columns.add_attribute(cell, 'text', 1)
 
+        cell = gtk.CellRendererText()
+        columns = self.builder.get_object("treeviewcolumn3")
+        columns.pack_start(cell)
+        columns.add_attribute(cell, 'text', 2)
+
         self.window = self.builder.get_object("MainWindow")
         self.window.show_all()
 
@@ -128,12 +133,14 @@ class LogicObject(object):
 
             if type(self.json[key_val]) is dict:
 
-                parent_node = treestore.append(None, [str(key_val), ""])
+                parent_node = treestore.append(None, [str(key_val), "", ""])
                 self._loadTreeRec(treestore, self.json[key_val], parent_node)
 
             else:
 
-                treestore.append(None, [str(key_val), str(self.json[key_val])])
+                treestore.append(None, [str(key_val), 
+                                        str(self.json[key_val]),
+                                        str(type(self.json[key_val]))])
 
     def _loadTreeRec(self, treestore, elems, parent_node):
         """
@@ -145,12 +152,14 @@ class LogicObject(object):
 
                 new_parent_node = treestore.append(parent_node, 
                                                    [str(key_val),
-                                                   ""])
+                                                   "", ""])
                 self._loadTreeRec(treestore, elems[key_val], new_parent_node)
 
             else:
 
-                treestore.append(parent_node, [str(key_val), str(elems[key_val])])
+                treestore.append(parent_node, [str(key_val), 
+                                               str(elems[key_val]),
+                                               str(type(elems[key_val]))])