--- a/booklet.tex	Tue Aug 18 16:43:11 2015 +0800
+++ b/booklet.tex	Tue Aug 18 17:31:14 2015 +0800
@@ -787,7 +787,7 @@
 \begin{center}
 \begin{tabular}{ccc}
 \includegraphics[scale=0.075]{pics/chunhan.jpg} &
-\includegraphics[scale=0.075]{pics/xingyuan.jpg} &
+\includegraphics[scale=0.035]{pics/xingyuan.jpg} &
 \includegraphics[scale=0.415]{pics/christian.jpg}\\
 Chunhan Wu & Xingyuan Zhang & Christian Urban
 \end{tabular}