diff --git a/2_3_time_series/index.html b/2_3_time_series/index.html
index f964277..ecab517 100644
--- a/2_3_time_series/index.html
+++ b/2_3_time_series/index.html
@@ -7,6 +7,7 @@
   </head>
   <body>
     <h3>Section 2 | Tutorial 3 | Time Series</h3>
+    <h4>Average Holiday Spending on Gifts for Family by Americans</h4>
     <div id="container"></div>
     <script src="../lib/d3.js"></script>
     <script src="main.js"></script>
