diff --git a/README.md b/README.md
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@@ -608,6 +608,7 @@ if you can identify the runtime complexity of different algorithms. It's a super
 
 - ### Arrays
     - [ ] About Arrays:
+    	- [Arrays CS50 Harvard University](https://www.youtube.com/watch?v=tI_tIZFyKBw&t=3009s)
         - [Arrays (video)](https://www.coursera.org/lecture/data-structures/arrays-OsBSF)
         - [UC Berkeley CS61B - Linear and Multi-Dim Arrays (video)](https://archive.org/details/ucberkeley_webcast_Wp8oiO_CZZE) (Start watching from 15m 32s)
         - [Dynamic Arrays (video)](https://www.coursera.org/lecture/data-structures/dynamic-arrays-EwbnV)