diff --git a/beamer/lc-beamer/example.tex b/beamer/lc-beamer/example.tex
index 66f98d9..f3ee859 100644
--- a/beamer/lc-beamer/example.tex
+++ b/beamer/lc-beamer/example.tex
@@ -40,36 +40,40 @@
 
 
 
-\begin{frame}
+\begin{frame}[t, fragile]
   \frametitle{Type Systems}
   \framesubtitle{Safety <> Flexibility}
 
-  \begin{itemize}
-  \item<1-> Goal: eliminate undefined behaviour,
-  facilitate abstract code
-  \item<2-> simple types are overly restrictive,
-  loss of low level control
+\centering
+  \includegraphics[width=0.9\textwidth]{intro.pdf}
 
-  \item<3-|alert@3> polymorphism
-  (regain flexibility in type-safe way)
-  \begin{itemize}
-    \item<4-> parametric polymorphism (generics)
-    \item<4-> subtype polymorphism (inheritance / coercions)
-  \end{itemize}  
-  \end{itemize}
-\end{frame}
-
-
-\begin{frame}[t, fragile]{Type Systems}
-\framesubtitle{Safety <> Flexibility}
-
-\begin{lstlisting}
+	\pause
+	\begin{block}{type information in comments}
+	\begin{lstlisting}
 	/* this is an angle in degrees */
 	double hue = 156.4;
-\end{lstlisting}
+	\end{lstlisting}
+\end{block}
+
 \end{frame}
 
+\begin{frame}[t, fragile]{Example - Image Processing}
+\begin{lstlisting}
+image-read :: FilePath -> [Color]
+image-write :: FilePath -> [Color] -> ()
 
+image-mix :: $\mathbb{R}$ -> [Color] -> [Color] -> [Color]
+image-saturate :: $\mathbb{R}$ -> [Color] -> [Color]
+
+let im1 = image-read "in1.png"
+let im2 = image-read "in2.png"
+let im3 = image-mix 0.5
+		im1
+		(image-saturate 0.8 im2)		
+
+image-write "out.png" im3
+\end{lstlisting}
+\end{frame}
 
 
 \begin{frame}{Performance Checklist}
@@ -124,7 +128,6 @@ image-write "out.png" im3
 \end{lstlisting}
 \end{frame}
 
-
 \begin{frame}{Example - Image Processing}
 \framesubtitle{More Types}
 
@@ -180,7 +183,7 @@ image-write "out.png" im3
 
 \end{frame}
 
-\begin{frame}{Abstract Concept - Multiple Representations}
+\begin{frame}{Example - Image Processing}
   \framesubtitle{OpenGL Image Formats}
 
   \begin{itemize}
@@ -253,7 +256,7 @@ image-write "out.png" im3
 
 \begin{frame}{Solutions (I): Traits / Typeclasses / Interfaces}
   \begin{itemize}
-	\item todo   
+	\item todo
   \end{itemize}
 \end{frame}
 
@@ -340,7 +343,7 @@ image-write "out.png" im3
 
 \begin{frame}{Morphisms}
 \framesubtitle{Coherence}
-  \begin{block}{Coherence Condition}
+  \begin{block}{Morphism Condition}
 	Assume\\
 	\(\metavariable{m_\sigma} : \typeterminal{\metavariable{\sigma} \sim \metavariable{\sigma_1}  \rightarrow_\text{morph}  \metavariable{\sigma} \sim \metavariable{\sigma_2}}\)\\
 	\(\metavariable{m_\tau} : \typeterminal{\metavariable{\tau} \sim \metavariable{\tau_1}  \rightarrow_\text{morph}  \metavariable{\tau} \sim \metavariable{\tau_2}}\)\\
@@ -688,8 +691,11 @@ D :: \Gamma \vdash \metavariable{e} : \metavariable{\tau}\\
 
 
 
-\begin{frame}{Summary}
-todo
+\begin{frame}[t, fragile]{Summary}
+
+%\begin{tabular*}[h]{p{0.5\textwidth}|p{0.5\textwidth}}
+%\end{tabular*}
+
 \end{frame}
 
 
diff --git a/beamer/lc-beamer/intro.pdf b/beamer/lc-beamer/intro.pdf
new file mode 100644
index 0000000..cc14770
Binary files /dev/null and b/beamer/lc-beamer/intro.pdf differ