diff --git a/README.md b/README.md
index c9b60fc..4ce30f9 100644
--- a/README.md
+++ b/README.md
@@ -588,6 +588,7 @@ An updated and curated list of selected readings to illustrate best practices in
 * ["What Happens When..." Questions](https://www.glassdoor.com/Interview/What-happens-when-you-type-www-google-com-in-your-browser-QTN_56396.htm)
 	* [What Happens When You Type google.com into Browser and Press Enter?](https://github.com/alex/what-happens-when)
 	* [Netflix: What Happens When You Press Play?](http://highscalability.com/blog/2017/12/11/netflix-what-happens-when-you-press-play.html)
+	* [Monzo: How Peer-To-Peer Payments Work](https://monzo.com/blog/2018/04/05/how-monzo-to-monzo-payments-work/)
 	* [Transit and Peering: How Your Requests Reach GitHub](https://githubengineering.com/transit-and-peering-how-your-requests-reach-github/)
 	* [How Expedia Finds your Flights: A Detailed View](https://techblog.expedia.com/2016/03/07/how-expedia-finds-flights-a-detailed-view/)