diff --git a/sections/devops.md b/sections/devops.md
index 2af6f5e..367e89f 100644
--- a/sections/devops.md
+++ b/sections/devops.md
@@ -1198,6 +1198,7 @@ curl --user username:password -X POST -F "jenkinsfile=<Jenkinsfile" http://jenki
 * [Matt Watson](https://stackify.com/site-reliability-engineering/) - (2017) What Is Site Reliability Engineering and Why You Should Embrace It
 * [Katie Ballinger](https://circleci.com/blog/onboarding-new-site-reliability-engineers/) - (2017) Onboarding New Site Reliability Engineers
 * [Michael Cote](http://www.theregister.co.uk/2018/02/06/devops_no_ops_less_ops/) - (2018) The many-faced god of operational excellence, DevOps and now 'site reliability engineering'
+* [OpsStack](https://www.slideshare.net/OpsStack/how-to-monitoring-the-sre-golden-signals-ebook/) - [Slides] (2017) Monitoring the SRE Golden Signals | Actually Getting the Metrics from Common Services
 
 ## Tekton
 * [instrumenta/conftest](https://github.com/instrumenta/conftest) - Write tests against structured configuration data using the Open Policy Agent Rego query language. **See also** [Official Website](https://conftest.dev)