diff --git a/intermediate/data_cleaning/05.1_intro.md b/intermediate/data_cleaning/05.1_intro.md
index 40583248..081de6bb 100644
--- a/intermediate/data_cleaning/05.1_intro.md
+++ b/intermediate/data_cleaning/05.1_intro.md
@@ -1,4 +1,4 @@
-# Introduction
+# Data Tidying
 
 Array data that are represented by Xarray objects are often multivariate, multi-dimensional, and very complex. Part of the beauty of Xarray is that it is adaptable and scalable to represent a large number of data structures. However, this can also introduce difficulty (especially for learning users) in arriving at a workable structure that will best suit one's analytical needs.