diff --git a/introduction/introduction.tex b/introduction/introduction.tex
index 17843e6e6c67581ded7f1698f3ea3da7d35a4c13..587cc227a07643f3b6844146b61d81038ddb7e0d 100644
--- a/introduction/introduction.tex
+++ b/introduction/introduction.tex
@@ -32,12 +32,22 @@
 % First page of the presentation.
 \section{Introduction}
 \begin{frame}
-  \frametitle{Version control systems.}
+  \frametitle{Version control.}
 
   \emph{The management of changes to documents, computer programs, large web
   sites, and other collections of information.} --- Wikipedia.
   \bigskip
+  \pause
 
+  General features:
+  \begin{itemize}
+    \item Keeping track of your files in an orderly manner.
+    \begin{itemize}
+      \item Hiding old versions.
+      \item Recording who made changes and when.
+    \end{itemize}
+    \item Enables collaboration.
+  \end{itemize}
 \end{frame}
 
 \begin{frame}
@@ -59,7 +69,7 @@
     \item A reliable way to share files between people/computers.
     \item Allow multiple people working on the same project at the same time.
     \item Conflict resolution.
-    \item See who made what changes at when.
+    \item See who made which changes at which time.
     \item \ldots
   \end{itemize}
 \end{frame}
@@ -75,7 +85,12 @@
     \item This code will not be used by anyone else.
     \item The bugs can be tracked forever.
     \item \ldots
-    \pause
+  \end{itemize}
+  \bigskip
+  \pause
+
+  Eventually leading to:
+  \begin{itemize}
     \item I'm too busy rewriting the code I accidentally deleted.
   \end{itemize}
 \end{frame}
@@ -145,7 +160,7 @@
 \begin{frame}
   \frametitle{History.}
 
-  Designed to replace a commercial package named \emph{BitKeeper}.
+  Designed to replace the commercial package \emph{BitKeeper}.
   \begin{itemize}
     \item Speed.
     \item Simple design.
@@ -190,7 +205,7 @@
   We are going to:
   \begin{itemize}
     \item Create and configure a user account on the GitLab server.
-    \item Upload an \bt{ssh-key}.
+    \item Upload an \bt{ssh-key} to work with Git.
   \end{itemize}
 
   \vfill