Kanban boards are a visual tool used in project management to help teams visualize their work, limit work-in-progress, and maximize efficiency. They consist of columns representing different stages of a process, with cards that represent tasks moving through these stages. This method allows teams to see the status of their work at a glance and identify bottlenecks in their workflow. Originating from Toyota's production system, Kanban boards have become popular in Agile methodologies, particularly in software development. By using a Kanban board, teams can improve collaboration, enhance communication, and ensure that work is completed in a timely manner, ultimately leading to better project outcomes.