Docker Swarm is a native clustering and orchestration platform provided by Docker for deploying and managing containerized applications and services across multiple hosts and environments. It allows users to create and manage swarms of Docker nodes, distribute workloads, and scale applications horizontally for high availability and fault tolerance. Readers can explore Docker Swarm's architecture, features, and deployment options for orchestrating containerized environments, managing services, and ensuring reliability and scalability in production environments, leveraging its simplicity and integration with Docker tools and ecosystem.