A Kanban board organizes tasks into columns representing workflow stages, with drag-and-drop for moving cards between them. As the creator of CoreUI with over 10 years of React experience since 2014, I’ve built Kanban-style interfaces for project management tools, sprint planners, and support ticket systems. The most effective approach stores board state as a map of column IDs to card arrays, uses HTML5 drag-and-drop for movement, and rerenders on every drop. This provides a functional board without heavy dependencies.