This document discusses using an Ambition Chart to measure and improve agile maturity over time. The Ambition Chart identifies key maturity areas and allows teams to assess their current status, set incremental goals, and track progress. Examples are provided of Ambition Charts used for testing maturity and Scrum implementation. Guidance is given on identifying areas, dreaming of an ideal future state, defining small steps, using descriptive statements, and focusing on continuous improvement rather than end goals.