Helm is the package manager for Kubernetes, enabling you to define, install, and upgrade complex applications through reusable, versioned packages called charts. Helm streamlines deployment workflows by templating Kubernetes manifests, managing release history with rollback capabilities, and supporting dependency resolution across multi-environment configurations. Understanding Helm's architecture — especially the Tiller-less Helm 3 design, template engine powered by Go and Sprig functions, and OCI registry support — transforms Kubernetes deployments from manual YAML management into declarative, reproducible operations that scale across teams and clusters.