--- a/booklet.tex	Mon Aug 17 11:03:25 2015 +0800
+++ b/booklet.tex	Mon Aug 17 11:29:08 2015 +0800
@@ -762,9 +762,9 @@
 
 \begin{center}
 \begin{tabular}{ccc}
-\includegraphics[scale=0.1]{pics/chunhan.jpg} &
-\includegraphics[scale=0.1]{pics/xingyuan.jpg} &
-\includegraphics[scale=0.555]{pics/christian.jpg}\\
+\includegraphics[scale=0.075]{pics/chunhan.jpg} &
+\includegraphics[scale=0.075]{pics/xingyuan.jpg} &
+\includegraphics[scale=0.415]{pics/christian.jpg}\\
 Chunhan Wu & Xingyuan Zhang & Christian Urban
 \end{tabular}
 \end{center}