OpenTelemetry is an open source project that provides a standard way to collect telemetry data from distributed systems. It aims to enable developers to consistently and accurately measure the performance and behavior of their software, to help them identify and troubleshoot issues, and to ensure the reliability and security of their systems. In this session, we will introduce the key features and capabilities of OpenTelemetry, and demonstrate how it can be used to instrument a variety of applications and environments. We will also discuss the latest developments and future directions of the project, and provide guidance on how to get started with OpenTelemetry in your own organization.