diff --git a/docs/index.rst b/docs/index.rst
index 5ac4c21..567f748 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -23,6 +23,8 @@ Table of Contents
 .. toctree::
     :caption: Tutorials
 
+    Thermistor Learning Guide <https://learn.adafruit.com/thermistor>
+
 .. toctree::
     :caption: Related Products