diff --git a/ch2.tex b/ch2.tex
index 3e0abb8..7a6abdd 100644
--- a/ch2.tex
+++ b/ch2.tex
@@ -70,7 +70,7 @@ Asd qsd 1sd & DIFFERENT & 234234234 & (no data) \\
 \draw[ultra thick](c) to (d);
 
 \end{tikzpicture}
-\caption{An example diagram typeset with TikZ.}
+\caption{An example diagram typeset with TikZ. It is a good idea to write diagram captions to guide the reader on how to read the diagram. }
 \label{fig:schema}
 \end{figure}