Agile is a project management and product development approach that emphasizes flexibility, collaboration, and customer feedback. It breaks projects into smaller, manageable units called sprints, allowing teams to adapt to changes quickly and deliver incremental improvements. This method encourages regular communication among team members and stakeholders to ensure that the final product meets user needs. The Agile Manifesto, created in 2001, outlines the core values and principles of Agile methodology. It prioritizes individuals and interactions over processes and tools, working software over comprehensive documentation, customer collaboration over contract negotiation, and responding to change over following a plan.