Prometheus is a powerful open-source monitoring and alerting toolkit used for capturing time-series metrics in real-time. Coursera's Prometheus catalogue equips you with the knowledge needed to implement and manage Prometheus in various development and production environments. You'll learn to configure Prometheus to collect metrics from your applications, create insightful dashboards using Grafana, set up alerts based on specific conditions, and use Prometheus with Kubernetes for container monitoring. This skill will enhance your abilities as a DevOps engineer, cloud architect, or systems administrator, essential to managing and scaling your applications efficiently.