The Agile Manifesto, foundational to methodologies like XP, Scrum, and Kanban, emphasizes customer satisfaction through the early and continuous delivery of valuable software by accommodating changing requirements and prioritizing frequent software delivery. Agile principles advocate for collaboration between business and developers, empowering motivated individuals with trust and support, and valuing face-to-face communication as the most effective form of information exchange. Progress is measured through working software, while attention to technical excellence and simplicity is vital for agility. Self-organizing teams are encouraged to reflect and improve regularly, promoting sustainable development at a maintainable pace. The manifesto underscores the importance of a supportive company culture and close stakeholder collaboration to balance delivery pressure with team well-being, a perspective shared by David Tzemach, the founder of the Agile Quality Made Easy blog.