diff --git a/README.md b/README.md
index 30c8b6d..159dafc 100644
--- a/README.md
+++ b/README.md
@@ -545,6 +545,7 @@ An updated and curated list of selected readings to illustrate best practices in
 * [Designing Large-Scale Systems](https://www.somethingsimilar.com/2013/01/14/notes-on-distributed-systems-for-young-bloods/)
 	* [My Scaling Hero - Jeff Atwood (a dose of Endorphins before your interview, JK)](https://blog.codinghorror.com/my-scaling-hero/)
 	* [Software Engineering Advice from Building Large-Scale Distributed Systems - Jeff Dean](https://static.googleusercontent.com/media/research.google.com/en//people/jeff/stanford-295-talk.pdf)
+	* [Introduction to Architecting Systems for Scale](https://lethain.com/introduction-to-architecting-systems-for-scale/)
 	* [Anatomy of a System Design Interview](https://hackernoon.com/anatomy-of-a-system-design-interview-4cb57d75a53f)
 	* [8 Things You Need to Know Before a System Design Interview](http://blog.gainlo.co/index.php/2015/10/22/8-things-you-need-to-know-before-system-design-interviews/)
 	* [Top 10 System Design Interview Questions ](https://hackernoon.com/top-10-system-design-interview-questions-for-software-engineers-8561290f0444)