diff --git a/Preface/Preface.ipynb b/Preface/Preface.ipynb
index 96c51bb..441726b 100644
--- a/Preface/Preface.ipynb
+++ b/Preface/Preface.ipynb
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Preface: Introduction to "
+    "# Preface: Introduction to Time Series Analysis"
    ]
   },
   {