diff --git a/README.md b/README.md
index 800eac9..a1c3bd1 100644
--- a/README.md
+++ b/README.md
@@ -927,6 +927,7 @@ An updated and organized reading list for illustrating the patterns of scalable,
 * [The Art of Scalability](http://theartofscalability.com/)
 * [Web Scalability for Startup Engineers](https://www.goodreads.com/book/show/23615147-web-scalability-for-startup-engineers)
 * [Scalability Rules: 50 Principles for Scaling Web Sites](http://scalabilityrules.com/)
+* [Understanding Distributed Systems: What Every Developer Should Know About Large Distributed Application](https://understandingdistributed.systems/)
 
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