Nikos Batsios presents an overview of Kanban principles and practices for managing workflow, including visualizing work, limiting work-in-process, and managing flow. Key aspects covered are using a Kanban board to visualize workflow stages and work items, establishing work-in-process limits to improve throughput, addressing bottlenecks, and helping work flow through the system by reducing waste and handoffs between stages. Metrics like throughput are also discussed. The presentation provides examples and recommendations for applying Kanban principles to optimize an organization's workflow.