In this workshop, we will learn about the basics of observability and its benefits. We will take a hands on approach and actually instrument an application with OpenTelemetry, which is a vendor neutral instrumentation library. Then we will visualise the data sent by open telemetry with SigNoz, which is a full stack observability platform. In the last section, we will take an example of a real world issue and how this observability stack can be used to find the root cause of the issue.