diff --git a/contrib/plotting-visualization/index.md b/contrib/plotting-visualization/index.md
index 84d07f9..d20340b 100644
--- a/contrib/plotting-visualization/index.md
+++ b/contrib/plotting-visualization/index.md
@@ -1,6 +1,6 @@
 # List of sections
 
 - [Installing Matplotlib](matplotlib-installation.md)
+- [Introducing Matplotlib](matplotlib-introduction.md)
 - [Bar Plots in Matplotlib](matplotlib-bar-plots.md)
 - [Pie Charts in Matplotlib](matplotlib-pie-charts.md)
-- [Introducing Matplotlib](matplotlib.md)