diff --git a/free-programming-books.md b/free-programming-books.md
index 795eb3c6..617b69e7 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -333,11 +333,12 @@
 
 #### Cloud Computing
 
-* [Designing Distributed Systems](https://azure.microsoft.com/en-us/resources/designing-distributed-systems/) *(account required)
+* [Designing Distributed Systems](https://azure.microsoft.com/en-us/resources/designing-distributed-systems/) *(account required)*
 * [Learn Azure in a Month of Lunches](https://azure.microsoft.com/mediahandler/files/resourcefiles/learn-azure-in-a-month-of-lunches/Learn_Azure_in_a_Month_of_Lunches.pdf) - Iain Foulds (PDF)
 * [Monitoring Modern Infrastructure](https://www.datadoghq.com/ebook/monitoring-modern-infrastructure/) *(account required)*
 * [Multi-tenant Applications for the Cloud, 3rd Edition](http://www.microsoft.com/en-us/download/details.aspx?id=29263)
 * [OpenStack Operations Guide](https://docs.openstack.org/ops-guide/index.html)
+* [Streamline microservice management with Istio Service Mesh](https://developers.redhat.com/books/introducing-istio-service-mesh-microservices/) *(account required)*
 * [The Developer’s Guide to Azure](https://azure.microsoft.com/en-us/campaigns/developer-guide/)