--- a/mercurial.tex
+++ b/mercurial.tex
@@ -22,16 +22,23 @@
   \tableofcontents
 \end{frame}
 
-\section{Introduction}
+\section{Mercurial Introduction}
+
+\subsection{Overview}
 
 \include{features}
 \include{mercurial-users}
 \include{openoffice}
 \include{testimonials}
+
+\subsection{Centralized vs Distributed}
+
 \include{centralized}
 \include{distributed}
 \include{why-distributed}
 
+\subsection{Key Mercurial Concepts}
+
 \include{key-commands}
 \include{pull-merge}
 
@@ -49,9 +56,9 @@
 \include{svn-branching}
 \include{svn-merging}
 
-\subsection{The Underlying Model}
+%\subsection{The Underlying Model}
 
-\include{model}
+%\include{model}
 %\include{immutable-history}
 
 %\include{central-workflow}
@@ -66,11 +73,11 @@
 
 \include{extensions}
 
-\subsection{Changing History}
+%\subsection{Changing History}
 
-\include{rebase}
+%\include{rebase}
 %\include{mq}
-\include{histedit}
+%\include{histedit}
 
 \subsection{Talking to Other Systems}