In this AWS re:Invent 2023 session, Ben Moses demonstrates the power of AWS Step Functions Workflow Studio, a visual low-code tool for building complex workflows. He showcases an existing workflow from the Serve Espresso coffee booth, highlighting features like DynamoDB integration, choice states, and EventBridge callbacks. Moses then illustrates how to create a new workflow from scratch, emphasizing the ease of integrating various AWS services through drag-and-drop functionality. The session provides insights into error handling, retry policies, and the underlying Amazon States Language (ASL) that powers these workflows.