diff --git a/docbook/users-guide/Graphics.xml b/docbook/users-guide/Graphics.xml
index 1cbe96dba9d27de3a7815aca94f90d09197398c1..e1eb7009736fe6a53d78393de42e0e20c98e8058 100644
--- a/docbook/users-guide/Graphics.xml
+++ b/docbook/users-guide/Graphics.xml
@@ -1789,6 +1789,29 @@ Option_t* option)
 </para>
 </figure>
 
+</sect2>
+
+<sect2><title>The TeX Processor TMathText</title>
+<para>
+TMathText's purpose is to write mathematical equations, exactly as TeX would
+do it. The syntax is the same as the TeX's one.
+</para>
+<para>The script <code>$ROOTSYS/tutorials/graphics/tmathtex.C</code>:</para>
+<para>
+gives the following output:
+</para>
+
+<figure><title>A TMathText example</title>
+<para>
+<inlinemediaobject><imageobject><imagedata fileref="pictures/mathtext.png" width="300.0pt"/></imageobject></inlinemediaobject>
+</para>
+</figure>
+
+<para><code>TMathText</code> uses plain
+TeX syntax and uses "\" as control instead of "#". If a piece of text containing
+"\" is given to <code>TLatex</code> then <code>TMathText</code> is automatically invoked.
+Therefore, as histograms' titles, axis titles, labels etc ... are drawn using
+<code>TLatex</code>, the <code>TMathText</code> syntax can be used for them also. </para>
 </sect2>
 </sect1>
 
diff --git a/docbook/users-guide/Users-Guide.xpr b/docbook/users-guide/Users-Guide.xpr
index 2fd6427abbefc0bcfefa40ef17fe5742a07e86a4..00788f2512d0d80d6d4fc947ff45e3b7a291fd33 100644
--- a/docbook/users-guide/Users-Guide.xpr
+++ b/docbook/users-guide/Users-Guide.xpr
@@ -1,100 +1,147 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project version="12.2">
+<project version="14.0">
     <meta>
         <filters directoryPatterns="" filePatterns="" positiveFilePatterns="" showHiddenFiles="false"/>
         <options>
-            <serialized version="12.2" xml:space="preserve">
+            <serialized version="14.0" xml:space="preserve">
                 <map>
                     <entry>
                         <String>scenario.associations</String>
                         <scenarioAssociation-array>
                             <scenarioAssociation>
-                                <field name="name">
-                                    <String>ROOT Docbook PDF</String>
-                                </field>
-                                <field name="type">
-                                    <String>XSL</String>
-                                </field>
                                 <field name="url">
                                     <String>ROOTUsersGuide.xml</String>
                                 </field>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook HTML - Chunk</String>
+                                    </list>
+                                </field>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
+                                </field>
                             </scenarioAssociation>
                             <scenarioAssociation>
-                                <field name="name">
-                                    <String>ROOT Docbook PDF</String>
+                                <field name="url">
+                                    <String>Graphics.xml</String>
                                 </field>
-                                <field name="type">
-                                    <String>XSL</String>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook PDF</String>
+                                    </list>
                                 </field>
-                                <field name="url">
-                                    <String>Introduction.xml</String>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
                                 </field>
                             </scenarioAssociation>
                             <scenarioAssociation>
-                                <field name="name">
-                                    <String>ROOT Docbook PDF</String>
+                                <field name="url">
+                                    <String>Introduction.xml</String>
                                 </field>
-                                <field name="type">
-                                    <String>XSL</String>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook PDF</String>
+                                    </list>
                                 </field>
-                                <field name="url">
-                                    <String>../../../Dropbox/User%27s%20Guide/WritingGUI.xml</String>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
                                 </field>
                             </scenarioAssociation>
                             <scenarioAssociation>
-                                <field name="name">
-                                    <String>ROOT Docbook PDF</String>
+                                <field name="url">
+                                    <String>../../../Dropbox/User%27s%20Guide/WritingGUI.xml</String>
                                 </field>
-                                <field name="type">
-                                    <String>XSL</String>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook PDF</String>
+                                    </list>
                                 </field>
-                                <field name="url">
-                                    <String>../../../ROOT_Documents/User%27s%20Guide/DocBook/1Introduction.xml</String>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
                                 </field>
                             </scenarioAssociation>
                             <scenarioAssociation>
-                                <field name="name">
-                                    <String>ROOT Docbook PDF</String>
+                                <field name="url">
+                                    <String>../../../ROOT_Documents/User%27s%20Guide/DocBook/1Introduction.xml</String>
                                 </field>
-                                <field name="type">
-                                    <String>XSL</String>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook PDF</String>
+                                    </list>
                                 </field>
-                                <field name="url">
-                                    <String>../../../ROOT_Documents/User%27s%20Guide/DocBook/GettingStarted.xml</String>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
                                 </field>
                             </scenarioAssociation>
                             <scenarioAssociation>
-                                <field name="name">
-                                    <String>ROOT Docbook PDF</String>
+                                <field name="url">
+                                    <String>../../../ROOT_Documents/User%27s%20Guide/DocBook/GettingStarted.xml</String>
                                 </field>
-                                <field name="type">
-                                    <String>XSL</String>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook PDF</String>
+                                    </list>
                                 </field>
-                                <field name="url">
-                                    <String>../../../ROOT_Documents/User%27s%20Guide/DocBook/Introduction.xml</String>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
                                 </field>
                             </scenarioAssociation>
                             <scenarioAssociation>
-                                <field name="name">
-                                    <String>ROOT Docbook PDF</String>
+                                <field name="url">
+                                    <String>../../../ROOT_Documents/User%27s%20Guide/DocBook/Introduction.xml</String>
                                 </field>
-                                <field name="type">
-                                    <String>XSL</String>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook PDF</String>
+                                    </list>
                                 </field>
-                                <field name="url">
-                                    <String>../../../ROOT_Documents/User%27s%20Guide/DocBook/ROOTUsersGuide.xml</String>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
                                 </field>
                             </scenarioAssociation>
                             <scenarioAssociation>
-                                <field name="name">
-                                    <String>ROOT Docbook HTML</String>
+                                <field name="url">
+                                    <String>../../../ROOT_Documents/User%27s%20Guide/DocBook/ROOTUsersGuide.xml</String>
                                 </field>
-                                <field name="type">
-                                    <String>XSL</String>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook PDF</String>
+                                    </list>
+                                </field>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
                                 </field>
+                            </scenarioAssociation>
+                            <scenarioAssociation>
                                 <field name="url">
                                     <String>FittingHistograms.xml</String>
                                 </field>
+                                <field name="scenarioIds">
+                                    <list>
+                                        <String>ROOT Docbook HTML</String>
+                                    </list>
+                                </field>
+                                <field name="scenarioTypes">
+                                    <list>
+                                        <String>XSL</String>
+                                    </list>
+                                </field>
                             </scenarioAssociation>
                         </scenarioAssociation-array>
                     </entry>
diff --git a/docbook/users-guide/pictures/mathtext.png b/docbook/users-guide/pictures/mathtext.png
new file mode 100644
index 0000000000000000000000000000000000000000..e3c51239a01acef56593c30191be74e1ebfd438b
Binary files /dev/null and b/docbook/users-guide/pictures/mathtext.png differ